American Mathematics Competitions
                   2009 AMC 10 A Results for Connecticut                
                          GRAND STATISTICS  

      TOTAL NUMBER of official students taking exam:   2818

      Number of unofficial participants:          0

      Average score of participants:           63.1

      Average score for female students  is:   59.0  (  1139 Students)
      Average score for male students is:      66.8  (  1183 Students)
      Average score for unspecified gender is  63.3  (   496 Students)
      Average score for grade 10 is:           64.7  (  1452 Students)
      Average score for grade 9 is:            60.6  (  1085 Students)
      Average score for grade 8 and below is:  76.4  (    84 Students)
      Average score with unknown grade:        58.4  (   197 Students)

        AIME qualifying score =  120.0 or better
        Number of AIME qualifers                 17

        Number of schools returning results      68
        Average school winning score          100.37


                   American Mathematics Competitions
                   2009 AMC 12 A Results for Connecticut                
                          GRAND STATISTICS  

      TOTAL NUMBER of official students taking exam:   2596

      Number of unofficial participants:          0

      Average score of participants:           66.5

      Average score for female students  is:   63.5  (   957 Students)
      Average score for male students is:      68.5  (  1240 Students)
      Average score for unspecified gender is  67.3  (   399 Students)
      Average score for grade 13 is:           81.5  (     3 Students)
      Average score for grade 12 is:           67.2  (   933 Students)
      Average score for grade 11 is:           65.5  (  1273 Students)
      Average score for grade 10 is:           68.2  (   215 Students)
      Average score for grade 9 is:            72.2  (    52 Students)
      Average score for grade 8 and below is:  72.8  (     2 Students)
      Average score with unknown grade:        64.9  (   118 Students)

        AIME qualifying score =   97.5 or better
        Number of AIME qualifers                105

        Number of schools returning results      78
        Average school winning score           97.29
        Average school team score             264.52
 


                   American Mathematics Competitions
                   2009 AMC 10 B Results for Connecticut                
                          GRAND STATISTICS  

      TOTAL NUMBER of official students taking exam:    432

      Number of unofficial participants:          0

      Average score of participants:           71.8

      Average score for female students  is:   67.2  (   128 Students)
      Average score for male students is:      75.3  (   214 Students)
      Average score for unspecified gender is  70.1  (    90 Students)
      Average score for grade 10 is:           74.6  (   210 Students)
      Average score for grade 9 is:            68.1  (   185 Students)
      Average score for grade 8 and below is:  89.2  (    16 Students)
      Average score with unknown grade:        64.8  (    21 Students)

        AIME qualifying score =  120.0 or better
        Number of AIME qualifers                 18

        Number of schools returning results      22
        Average school winning score          106.70


                   American Mathematics Competitions
                   2009 AMC 12 B Results for Connecticut                
                          GRAND STATISTICS  

      TOTAL NUMBER of official students taking exam:    705

      Number of unofficial participants:          0

      Average score of participants:           72.7

      Average score for female students  is:   68.5  (   228 Students)
      Average score for male students is:      76.0  (   353 Students)
      Average score for unspecified gender is  71.0  (   124 Students)
      Average score for grade 13 is:           82.5  (     1 Student) 
      Average score for grade 12 is:           74.4  (   257 Students)
      Average score for grade 11 is:           70.8  (   331 Students)
      Average score for grade 10 is:           72.7  (    76 Students)
      Average score for grade 9 is:            81.1  (    22 Students)
      Average score for grade 8 and below is:  89.5  (     3 Students)
      Average score with unknown grade:        68.1  (    15 Students)

        AIME qualifying score =  100.0 or better
        Number of AIME qualifers                 43

        Number of schools returning results      34
        Average school winning score           99.57
        Average school team score             265.28
 


    2009 State AMC 12  TEAM Score Distribution
    -----------------------------------------------
    score         A         B       Rank
    -----------------------------------------------
    396.0                   1         1
    381.0         1                   2
    375.0         1                   3
    373.5         1                   4
    361.5         1                   5
    360.0         1                   6
    355.5         1                   7
    348.0         1                   8
    328.5                   1         9
    327.0         2         1        10
    325.5         1                  13
    318.0                   1        14
    316.5                   1        15
    313.5                   1        16
    310.5         2         2        17
    309.0                   1        21
    307.5         1         2        22
    306.0         1                  25
    300.0         1                  26
    298.5                   1        27
    295.5         2         1        28
    292.5         2                  31
    291.0         2         1        33
    289.5         1         1        36
    288.0         1                  38
    286.5         2         1        39
    285.0         1         1        42
    282.0         1                  44
    279.0         1         1        45
    277.5         2                  47
    276.0                   1        49
    274.5         2         1        50
    273.0         1                  53
    271.5         2                  54
    270.0         1                  56
    268.5         2                  57
    264.0         1         1        59
    262.5         1                  61
    259.5         1                  62
    258.0         1         1        63
    256.5         2                  65
    252.0         1         1        67
    250.5         2         1        69
    249.0         2                  72
    247.5         2                  74
    246.0         2                  76
    244.5         3                  78
    241.5         1                  81
    238.5         2                  82
    237.0         1                  84
    235.5         2                  85
    234.0         3         1        87
    232.5         1                  91
    231.0         1                  92
    228.0                   2        93
    226.5         1                  95
    223.5         1                  96
    222.0         2                  97
    220.5                   1        99
    216.0         1         1       100
    210.0         1                 102
    207.0         1                 103
    198.0         1                 104
    174.0                   1       105
    171.0                   1       106
    166.5                   1       107
    120.0                   1       108
    117.0                   1       109
    100.5         1                 110
     84.0         1                 111
 


         2009 AMC Contest Score Distributions
    -----------------------------------------------
    score      12 A      12 B      10 A      10 B
    -----------------------------------------------
    144.0         2         1
    141.0                             1
    136.5         1
    135.0                                       2
    133.5                                       1
    132.0         1         1         1         1
    130.5         2         2         1         3
    129.0                                       2
    127.5         2                   1         1
    126.0         2                   3         2
    124.5         3                   1         2
    123.0         1                   1         1
    121.5                   1         3         1
    120.0         3         1         5         2
    118.5         2                   3
    117.0         1                   5         2
    115.5         1                   8         1
    114.0         1                   3         1
    112.5         1         3         3
    111.0         5         1         9         1
    109.5         5         2        10         3
    108.0         7         2         3         2
    106.5         9         3         5         1
    105.0         4         4        15         1
    103.5         9         7        13         6
    102.0         7         6        12         3
    100.5        12         9         9         3
     99.0        15        16        13         1
     97.5         9         6         9         8
     96.0        12         9        20         3
     94.5        27        17        11         3
     93.0        13        10        21         7
     91.5        22        14        28         5
     90.0        28        15        30        11
     88.5        34        19        20         5
     87.0        27        16        33         6
     85.5        36        23        31         8
     84.0        40        10        50         9
     82.5        55        33        23        10
     81.0        53        19        39        11
     79.5        49        19        44         8
     78.0        78        19        64        10
     76.5        71        23        57        12
     75.0        70        19        70        12
     73.5        93        19        69        12
     72.0       107        23       101        23
     70.5        72        25        69         5
     69.0       103        20        89        14
     67.5       121        18        86        10
     66.0       124        26        97        19
     64.5       102        26        76        15
     63.0       105        14        82        15
     61.5       113        20        97        12
     60.0       109        17       122        14
     58.5        98        15        75        10
     57.0        99        14        81        10
     55.5        71        13        82         9
     54.0        80        18       125        15
     52.5        54        16        83        13
     51.0        61        13        81         8
     49.5        48        12        94         9
     48.0        57        15       101         9
     46.5        44         6        60         5
     45.0        23         6        53         3
     43.5        27         7        65         5
     42.0        33         4        80         6
     40.5        27         8        38         4
     39.0        10         2        50         3
     37.5        11         3        46         2
     36.0        22         2        38         5
     34.5         5                  12         3
     33.0         8         3        15
     31.5        10         1        22         1
     30.0        13         1        15         2
     28.5         6         2         8
     27.0         1         3         4
     25.5         3                   4
     24.0         8         1         6
     22.5         1                   3
     21.0         1         1         4
     19.5         1                   1
     18.0         3                   4
     15.0         1
     12.0                   1         2
      6.0         1



                   American Mathematics Competitions
                   2009 AMC 10 A Results for Connecticut                
                         SCORE DISTRIBUTION 

    score ----gender-----------   -----------grade-----------------
            male   female    ?    <=6      7      8      9     10      ?
    ----------------------------------------------------------------------------------------
    141.0             1                                  1
    132.0             1                                         1
    130.5      1                                                1
    127.5      1                                                1
    126.0      2      1                                         3
    124.5             1                                  1
    123.0             1                                  1
    121.5      2      1                                         3
    120.0      5                                  1      4
    118.5      3                                         2      1
    117.0      3                                  1             4
    115.5      7      1                    1      1      1      5
    114.0      1      1                                         3
    112.5      3                                  1      1      1
    111.0      4      3                    1             3      5
    109.5      6      1                    2      1      4      2      1
    108.0      1      1                                  2      1
    106.5      3      2                                  2      3
    105.0      8      5                           1      6      8
    103.5      6      3                           2      6      5
    102.0      8      1                    1      1      4      5      1
    100.5      5      4                           1      2      6
     99.0      7      3                           1      2      8      2
     97.5      3      2                           1      3      4      1
     96.0     10      7                           1      7     12
     94.5      8      1                           1      2      8
     93.0     13      5                           1      8     11      1
     91.5     17      6                                 11     15      2
     90.0     12      9                           2      9     15      4
     88.5     11      5                           1      7     11      1
     87.0     21      8                           2      9     22
     85.5     16      8                           1     14     14      2
     84.0     26     10                           3     12     32      3
     82.5     16      4                           1     11     11
     81.0     17     12                           1     11     24      3
     79.5     21     13                           1     12     29      2
     78.0     38     16                           4     18     39      3
     76.5     25     22                           2     16     37      2
     75.0     37     20                           2     24     41      3
     73.5     34     24                           3     26     38      2
     72.0     52     34                           3     37     59      2
     70.5     36     20                    1      2     19     41      6
     69.0     45     28                           2     28     52      7
     67.5     40     29                    1      1     28     48      8
     66.0     38     45                           2     47     43      5
     64.5     29     36                           4     26     40      6
     63.0     27     44                           1     22     52      7
     61.5     47     34                           5     33     50      9
     60.0     58     43                    2      2     45     64      9
     58.5     20     41                           3     20     46      6
     57.0     26     36                    1      1     38     33      8
     55.5     24     49                           1     30     47      4
     54.0     54     46                           2     47     61     15
     52.5     27     38                                 39     37      7
     51.0     27     41                                 32     42      7
     49.5     33     47                                 43     44      7
     48.0     32     56                    3            49     44      5
     46.5     20     30                           1     27     30      2
     45.0     17     29                                 29     21      3
     43.5     24     34                                 32     31      2
     42.0     31     33                                 47     24      9
     40.5     11     25                                 18     18      2
     39.0      9     30                                 22     23      5
     37.5     13     24                                 21     20      5
     36.0     13     18                                 20     13      5
     34.5      3      7                                  8      4
     33.0      4      5                           1      6      6      2
     31.5      9      9             1      1            11      7      2
     30.0      3      8                                  7      4      4
     28.5      1      5                                  3      4      1
     27.0      1      2                                  2      2
     25.5      2      1                                         3      1
     24.0      1      3                                  3      2      1
     22.5      1      1                                  1      2
     21.0             2                                  1      1      2
     19.5             1                                  1
     18.0      3      1                                  1      3
     12.0      1      1                                         2



                   American Mathematics Competitions
                   2009 AMC 10 A Results for Connecticut                
                              Analysis      


                   Table of Item Difficulty for the 2009
              American Mathematics Competitions 10/12
           Tabulation of responses for all Participants
                             Percent of Responses


    ITEM    A         B         C         D         E       OMITS       ?
    ____  _____     _____     _____     _____     _____     _____     _____

      1    0.43      0.28      0.35      8.41     89.74*     0.75      0.04
      2   92.19*     1.35      1.14      1.35      1.53      2.38      0.07
      3    2.31     10.89     66.89*     7.31      4.29      8.23      0.07
      4   24.91*     8.27      4.93      8.98     17.32     35.52      0.07
      5   13.52      5.50      5.78      3.90     44.07*    27.18      0.04
      6   54.86*     3.94      8.48      4.54      1.77     26.33      0.07
      7    7.24      4.15     26.79*     3.80     32.61     25.30      0.11
      8    9.23     75.27*     3.83      2.13      1.85      7.63      0.07
      9    9.23     14.76*     8.84      6.03      0.82     60.29      0.04
     10    4.72     18.35*     6.88     10.18      2.59     57.20      0.07
     11    2.84      3.34      4.97     50.53*     2.41     35.84      0.07
     12    4.12      7.84     26.51*     7.88      7.63     45.99      0.04
     13   22.04      5.57      4.15     11.39     12.07*    44.64      0.14
     14   36.09*     2.09      5.57      4.86     11.67     39.64      0.07
     15    3.09      4.12      4.93      7.38     42.62*    37.83      0.04
     16   24.73      5.43      3.87      9.87*     6.64     49.43      0.04
     17    4.90      9.65      6.92*     3.05      5.15     70.26      0.07
     18   19.55     12.28      6.92     15.19*     7.98     38.04      0.04
     19    5.39      9.33*     7.03      8.45      2.84     66.93      0.04
     20    8.48      9.62     10.40     32.19*     1.99     37.30      0.04
     21    2.73      2.31     12.21*     3.90      2.91     75.90      0.04
     22    5.82      6.67     30.02      6.74*     4.83     45.88      0.04
     23    3.30      2.77      5.61      3.76     10.79*    73.74      0.04
     24    8.30     14.51      5.64*     4.29      8.09     59.05      0.11
     25    4.58      4.47*     6.28      4.22      3.73     76.69      0.04


   (*)  Correct Response

   (?)  Response the computer was unable to read due to incomplete
        erasures or two answers marked in the same column




                   American Mathematics Competitions
                   2009 AMC 12 A Results for Connecticut                
                         SCORE DISTRIBUTION 

    score ----gender-----------   -----------grade-----------------
            male   female    ?    <=6      7      8      9     10     11     12     13      ?
    ----------------------------------------------------------------------------------------
    144.0      2                                                       1      1
    136.5             1                                                       1
    132.0      1                                                              1
    130.5      1      1                                                2
    127.5             2                                                2
    126.0      1                                                       2
    124.5      3                                         1                    2
    123.0      1                                                              1
    120.0      3                                                1             2
    118.5             1                                                1      1
    117.0             1                                                1
    115.5             1                                                1
    114.0      1                                                       1
    112.5             1                                                1
    111.0      3      1                                  2             1      2
    109.5      2      2                                         1      1      3
    108.0      4      1                                  3      1      1      2
    106.5      5      1                                         2      6      1
    105.0      3      1                                         1      1      2
    103.5      7      2                                         2      6      1
    102.0      6      1                                         2      2      3
    100.5      6      4                                                7      5
     99.0      9      3                                  1      3      7      3      1
     97.5      5      3                                         5      1      2             1
     96.0      7      3                                  2             5      4             1
     94.5     20      4                                  3      2     12     10
     93.0      9      3                                         3      4      6
     91.5     13      5                                  1      3      9      9
     90.0     15      5                                         2     15     10             1
     88.5     25      3                                  1      8     10     14             1
     87.0     19      6                                  1      3     11     11             1
     85.5     16      9                                         1     17     16             2
     84.0     24     11                                  1      6     22      9             2
     82.5     26     18                                  2      7     20     24             2
     81.0     32     10                                         6     16     27             4
     79.5     26     16                                         3     31     14             1
     78.0     40     18                                         1     37     32             8
     76.5     46     21                                  3      4     34     29      1
     75.0     32     21                           1      3      6     28     25             7
     73.5     39     40                                  1      4     48     35             5
     72.0     59     38                                  1      6     54     43             3
     70.5     38     21                           1      1      5     37     25             3
     69.0     49     36                                  1      5     48     42      1      6
     67.5     52     51                                         9     65     44             3
     66.0     50     55                                  1     11     56     48             8
     64.5     47     38                                  1      7     57     31             6
     63.0     46     45                                  1      9     45     44             6
     61.5     53     44                                  2      5     64     37             5
     60.0     49     40                                  3     11     50     42             3
     58.5     47     33                                         6     47     37             8
     57.0     41     46                                  2      8     52     35             2
     55.5     28     38                                  1      5     40     22             3
     54.0     41     31                                  1      8     46     22             3
     52.5     22     26                                  2      5     29     15             3
     51.0     20     28                                  1      8     25     22             5
     49.5     21     21                                  2      3     27     14             2
     48.0     25     29                                  1      4     33     17             2
     46.5     19     21                                  1      6     21     15             1
     45.0     10      9                                         3     12      8
     43.5      7     17                                  1      1     16      9
     42.0      8     15                                         5     15     10             3
     40.5     11     12                                         1     14     12
     39.0      4      5                                  2             5      3
     37.5      2      5                                                5      2             4
     36.0      7     12                                  1      2     10      7             2
     34.5      1      3                                                4      1
     33.0      2      4                                         2      4      1             1
     31.5      6      3                                         2      8
     30.0      8      2                                                7      6
     28.5      1      4                                  1             5
     27.0      1                                                       1
     25.5      2      1                                         1      1      1
     24.0      7      1                                                3      5
     22.5      1                                                              1
     21.0      1                                                       1
     19.5                                                                     1
     18.0             3                                                2      1
     15.0      1                                                              1
      6.0      1                                                              1



                   American Mathematics Competitions
                   2009 AMC 12 A Results for Connecticut                
                              Analysis      


                   Table of Item Difficulty for the 2009
              American Mathematics Competitions 10/12
           Tabulation of responses for all Participants
                             Percent of Responses


    ITEM    A         B         C         D         E       OMITS       ?
    ____  _____     _____     _____     _____     _____     _____     _____

      1   89.25*     6.28      0.62      0.31      1.73      1.77      0.04
      2    0.81      4.93     87.60*     2.73      2.27      1.58      0.08
      3    4.08     81.47*     3.20      5.70      1.66      3.85      0.04
      4   94.61*     0.69      0.50      0.69      1.62      1.85      0.04
      5    0.89      1.62      2.54     80.86*     1.35     12.75      0.00
      6   22.27      3.97      3.78     12.13     34.05*    23.73      0.08
      7    2.27     24.15*     5.86      3.12      2.50     62.10      0.00
      8   57.32*     1.81      4.74      4.85      9.28     21.88      0.12
      9    3.00      4.12      5.05     30.89*     5.78     51.12      0.04
     10    3.62      6.16     38.64*     9.05      6.93     35.44      0.15
     11    2.20      2.20      3.31      5.51     69.45*    17.30      0.04
     12   12.79     27.31*     5.20      7.43      2.81     44.34      0.12
     13    9.75      9.44     13.71     16.26*     6.28     44.49      0.08
     14    3.74      5.39*     8.55     11.06      5.82     65.45      0.00
     15    7.70      4.55      7.86     23.04*     5.16     51.69      0.00
     16   11.52      6.93      7.82      6.09*     3.66     63.98      0.00
     17    5.47      4.51      8.13*     4.28      7.63     69.99      0.00
     18   10.90      5.16*     5.51      3.27      3.35     71.76      0.04
     19    7.74      8.09      6.82*     5.89      7.90     63.52      0.04
     20    2.93      2.93      6.82      4.51      9.21*    73.57      0.04
     21    5.28      4.39      5.43*     3.16      3.89     77.85      0.00
     22    2.31      3.93      4.20      4.20      2.89*    82.47      0.00
     23    1.89      2.97      4.04      3.43*     1.19     86.48      0.00
     24    8.44      4.01      3.35      2.23      1.66*    80.32      0.00
     25    2.77*     4.35      4.62      5.55      7.20     75.42      0.08


   (*)  Correct Response

   (?)  Response the computer was unable to read due to incomplete
        erasures or two answers marked in the same column




                   American Mathematics Competitions
                   2009 AMC 10 B Results for Connecticut                
                         SCORE DISTRIBUTION 

    score ----gender-----------   -----------grade-----------------
            male   female    ?    <=6      7      8      9     10      ?
    ----------------------------------------------------------------------------------------
    135.0      2                                         1      1
    133.5      1                                                1
    132.0             1                                         1
    130.5      2                                         1      2
    129.0             2                           1      1
    127.5      1                                                1
    126.0      2                                  1      1
    124.5      2                                         1      1
    123.0      1                                                1
    121.5             1                                  1
    120.0      2                           1             1
    117.0      2                                  1             1
    115.5      1                                                1
    114.0                                                       1
    111.0             1                                         1
    109.5      3                                                3
    108.0      2                                  1      1
    106.5      1                                                1
    105.0      1                                                1
    103.5      1      1                                  2      4
    102.0      1      1                                  2      1
    100.5             1                                         3
     99.0             1                                  1
     97.5      3      2                                  3      5
     96.0      2      1                                  2      1
     94.5      2      1                           1      1      1
     93.0      3      1                                  3      3      1
     91.5      2      1                                  3      2
     90.0      8      2                           3      3      5
     88.5      4      1                                  2      3
     87.0      5      1                           1      2      3
     85.5      3      3                                  2      6
     84.0      6      2                                  2      7
     82.5      5      3                                  2      7      1
     81.0      7      2                                  5      6
     79.5      4      2                                  3      4      1
     78.0      4      6                                  6      4
     76.5      5      4                                  2     10
     75.0      7      1                                  5      7
     73.5      9      1                                  4      7      1
     72.0     13      7                    1             9     12      1
     70.5      4      1                                  3      2
     69.0      6      4             1             1      5      7
     67.5      4      3                                  1      7      2
     66.0     12      3                                 10      6      3
     64.5      7      4             1                    6      8
     63.0      6      6                                  8      5      2
     61.5      5      4                                  6      5      1
     60.0      7      2                                  9      2      3
     58.5      4      5                           1      5      4
     57.0      3      6                                  7      2      1
     55.5      3      4                                  3      4      2
     54.0      9      5                                  7      8
     52.5      5      6                                  4      8      1
     51.0      1      3                                  3      5
     49.5      4      2                                  6      3
     48.0      4      1                                  6      3
     46.5      3      2                                  5
     45.0      2      1                                  1      2
     43.5      3                                         3      2
     42.0      2      4             1                    2      3
     40.5      1      2                                  4
     39.0      1      1                                  2             1
     37.5             2                                         2
     36.0      1      2                                  4      1
     34.5             3                                  3
     31.5             1                                         1
     30.0             1                                         2



                   American Mathematics Competitions
                   2009 AMC 10 B Results for Connecticut                
                              Analysis      


                   Table of Item Difficulty for the 2009
              American Mathematics Competitions 10/12
           Tabulation of responses for all Participants
                             Percent of Responses


    ITEM    A         B         C         D         E       OMITS       ?
    ____  _____     _____     _____     _____     _____     _____     _____

      1    0.46     75.93*     7.18     12.96      2.78      0.69      0.00
      2    2.08      0.93     92.82*     0.23      0.23      3.70      0.00
      3    1.39      3.70     73.61*    16.44      1.16      3.70      0.00
      4    1.62      3.24     76.85*     9.95      1.85      6.48      0.00
      5    6.94      1.62     21.99     58.56*     4.63      6.25      0.00
      6    0.69      1.16      7.87     74.31*     2.31     13.66      0.00
      7    9.49     19.68     58.33*     5.32      5.09      2.08      0.00
      8    4.40     34.72*     5.56     34.72      5.56     15.05      0.00
      9   42.82*     5.79      6.71     10.88      4.63     29.17      0.00
     10    9.49      2.55      3.94      6.94     49.77*    27.31      0.00
     11   68.29*     5.79      4.86      4.63      1.62     14.81      0.00
     12   25.23*    16.67     10.88     18.75      9.49     18.98      0.00
     13    2.31     12.27     41.67*     8.10     12.96     22.69      0.00
     14    4.40     28.24     23.84     16.67*     8.56     18.29      0.00
     15    6.71      6.94      2.78      7.41     54.86*    21.30      0.00
     16    5.79     18.29*     5.32      4.17      5.56     60.88      0.00
     17   12.27     15.05     21.76*     3.70      1.16     46.06      0.00
     18    5.09      5.09      9.03     15.51*     4.17     61.11      0.00
     19   20.14*    24.07     10.42     11.11      2.78     31.48      0.00
     20    6.48     15.28*     7.18      1.62      5.09     64.35      0.00
     21    5.09     12.27      7.87     15.74*     3.24     55.79      0.00
     22    3.94      4.63*     7.41      5.56      2.55     75.93      0.00
     23    4.63      8.80     12.73*     5.56      4.40     63.89      0.00
     24   20.14*     3.01      5.09      2.78      7.87     61.11      0.00
     25   21.76     16.20*     7.18      4.17      5.56     45.14      0.00


   (*)  Correct Response

   (?)  Response the computer was unable to read due to incomplete
        erasures or two answers marked in the same column




                   American Mathematics Competitions
                   2009 AMC 12 B Results for Connecticut                
                         SCORE DISTRIBUTION 

    score ----gender-----------   -----------grade-----------------
            male   female    ?    <=6      7      8      9     10     11     12     13      ?
    ----------------------------------------------------------------------------------------
    144.0      1                                                       1
    132.0             1                                                1
    130.5      2                                                       2
    121.5      1                                                              1
    120.0      1                                                              1
    112.5      2      1                                                1      2
    111.0             1                                                1
    109.5      2                                                              2
    108.0      1                                                       1      1
    106.5      2      1                                  1             2
    105.0      4                                                       1      3
    103.5      4                                                3      2      1             1
    102.0      5      1                                  1             1      4
    100.5      7      1                                         1      3      5
     99.0     10      5                                         1      9      6
     97.5      3      1                                  3      1             2
     96.0      5      3                                                6      3
     94.5     11      3                                  1      1      9      6
     93.0      5      2                                  1      1      6      2
     91.5     10      1                           2             4      3      5
     90.0      9      2                                         1      7      6             1
     88.5      8     11                                  2      2      7      8
     87.0     10      4                                         1      9      6
     85.5     15      5                           1      1      3      6     11             1
     84.0      4      3                                         2      5      3
     82.5     19      6                                  1      6     12     13      1
     81.0     12      6                                  1      2     10      6
     79.5      8      9                                  1      1     11      6
     78.0     10      5                                  1      3      4     11
     76.5     15      6                                         1     11      9             2
     75.0     12      6                                  1      3      7      8
     73.5     11      5                                  1      1      6     11
     72.0      6     11                                         3     12      8
     70.5      9     10                                  1      3     10     10             1
     69.0      7      9                                         2     13      4             1
     67.5      8      5                                  1      2     13      2
     66.0      9     11                                         5      9     12
     64.5     20      3                                         2     13     10             1
     63.0      6      5                                  2      2      6      4
     61.5      6      7                                         1     14      3             2
     60.0      4      7                                         1     11      5
     58.5      8      6                                                8      6             1
     57.0      7      5                                                7      6             1
     55.5      5      6                                         6      3      3             1
     54.0      7      6                                  1      2     10      5
     52.5      6      9                                         2      8      6
     51.0      6      5                                         3      7      3
     49.5      7      1                                                5      6             1
     48.0      4      8                                                6      9
     46.5      4      2                                  1             3      2
     45.0      2      4                                                2      4
     43.5      2      3                                                3      4
     42.0      1      2                                         1      1      1             1
     40.5      4      2                                         1      5      2
     39.0             2                                                2
     37.5             2                                                3
     36.0      1      1                                                2
     33.0             3                                                3
     31.5      1                                                       1
     30.0             1                                                1
     28.5      1      1                                                2
     27.0      1      2                                         1      2
     24.0                                                       1
     21.0      1                                                       1
     12.0      1                                                       1



                   American Mathematics Competitions
                   2009 AMC 12 B Results for Connecticut                
                              Analysis      


                   Table of Item Difficulty for the 2009
              American Mathematics Competitions 10/12
           Tabulation of responses for all Participants
                             Percent of Responses


    ITEM    A         B         C         D         E       OMITS       ?
    ____  _____     _____     _____     _____     _____     _____     _____

      1    0.28     84.26*     5.39      8.94      0.99      0.14      0.00
      2    0.57      1.13     83.55*    11.21      0.99      2.55      0.00
      3    4.54      1.99     16.74     69.65*     2.55      4.54      0.00
      4    1.70      2.41     84.54*     7.23      1.56      2.55      0.00
      5    0.28      0.71      3.40     86.24*     2.84      6.52      0.00
      6    7.94     13.76     66.52*     5.67      3.55      2.27      0.28
      7    4.11     60.99*     9.50     14.61      3.40      7.38      0.00
      8    3.26      4.11      2.98      5.39     74.04*    10.21      0.00
      9   56.74*     4.68      2.13      6.95      2.27     27.23      0.00
     10   49.65*    15.74     10.35      8.37      3.69     12.20      0.00
     11    3.83     30.07     19.01     22.13*     9.08     15.89      0.00
     12    2.70      3.26      5.82      2.70     36.31*    49.22      0.00
     13    3.26      4.82      6.10     27.52*     7.38     50.92      0.00
     14   10.07     10.64     37.02*     1.70      1.42     39.15      0.00
     15    1.42     56.88*     5.11      6.67      4.96     24.96      0.00
     16    4.54      3.69*     3.55      2.84      2.27     83.12      0.00
     17   24.54     19.72*     7.52      5.67      4.11     38.44      0.00
     18    4.68      8.23     14.89*     6.24      5.53     60.43      0.00
     19    1.13      3.83      3.97      2.13      2.13*    86.81      0.00
     20    2.41      2.84      4.54*     2.41      2.41     85.39      0.00
     21    4.54*     4.26      5.25     11.06     22.70     52.20      0.00
     22    1.70      2.70      2.41*     2.84      1.56     88.79      0.00
     23    2.13      2.70      3.12      3.69*     1.56     86.81      0.00
     24    5.53      5.96*     2.98      2.70      1.28     81.56      0.00
     25    6.67      2.98      4.82      3.69      4.82*    77.02      0.00


   (*)  Correct Response

   (?)  Response the computer was unable to read due to incomplete
        erasures or two answers marked in the same column