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

      TOTAL NUMBER of official students taking exam:   1433

      Number of unofficial participants:          0

      Average score of participants:           64.6

      Average score for female students  is:   58.6  (   580 Students)
      Average score for male students is:      68.9  (   649 Students)
      Average score for unspecified gender is  67.6  (   204 Students)
      Average score for grade 10 is:           63.4  (   650 Students)
      Average score for grade 9 is:            61.8  (   582 Students)
      Average score for grade 8 and below is:  84.2  (    88 Students)
      Average score with unknown grade:        70.3  (   113 Students)

        AIME qualifying score =  120.0 or better
        Number of AIME qualifers                 27

        Number of schools returning results      48
        Average school winning score          101.41


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

      TOTAL NUMBER of official students taking exam:   1901

      Number of unofficial participants:          0

      Average score of participants:           63.7

      Average score for female students  is:   60.0  (   740 Students)
      Average score for male students is:      66.0  (  1022 Students)
      Average score for unspecified gender is  66.5  (   139 Students)
      Average score for grade 13 is:           55.5  (     1 Student) 
      Average score for grade 12 is:           64.5  (   759 Students)
      Average score for grade 11 is:           62.2  (   933 Students)
      Average score for grade 10 is:           65.9  (   126 Students)
      Average score for grade 9 is:            67.9  (    36 Students)
      Average score for grade 8 and below is:  97.5  (     2 Students)
      Average score with unknown grade:        71.1  (    44 Students)

        AIME qualifying score =   97.5 or better
        Number of AIME qualifers                 58

        Number of schools returning results      62
        Average school winning score           91.96
        Average school team score             253.02
 


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

      TOTAL NUMBER of official students taking exam:    363

      Number of unofficial participants:          0

      Average score of participants:           65.0

      Average score for female students  is:   59.9  (   101 Students)
      Average score for male students is:      74.4  (   166 Students)
      Average score for unspecified gender is  54.3  (    96 Students)
      Average score for grade 10 is:           63.6  (   149 Students)
      Average score for grade 9 is:            70.9  (   105 Students)
      Average score for grade 8 and below is:  90.1  (    32 Students)
      Average score with unknown grade:        49.4  (    77 Students)

        AIME qualifying score =  120.0 or better
        Number of AIME qualifers                 13

        Number of schools returning results      18
        Average school winning score          111.08


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

      TOTAL NUMBER of official students taking exam:    352

      Number of unofficial participants:          0

      Average score of participants:           66.0

      Average score for female students  is:   62.0  (   105 Students)
      Average score for male students is:      69.9  (   191 Students)
      Average score for unspecified gender is  60.3  (    56 Students)
      Average score for grade 12 is:           67.5  (   158 Students)
      Average score for grade 11 is:           69.1  (   132 Students)
      Average score for grade 10 is:           59.7  (    17 Students)
      Average score for grade 9 is:            58.9  (    12 Students)
      Average score for grade 8 and below is: 115.5  (     2 Students)
      Average score with unknown grade:        49.0  (    31 Students)

        AIME qualifying score =  100.0 or better
        Number of AIME qualifers                 30

        Number of schools returning results      24
        Average school winning score           97.00
        Average school team score             255.25
 


    2009 State AMC 12  TEAM Score Distribution
    -----------------------------------------------
    score         A         B       Rank
    -----------------------------------------------
    396.0                   1         1
    370.5         1                   2
    361.5         1                   3
    360.0         1                   4
    357.0                   1         5
    351.0         1                   6
    346.5         1                   7
    327.0                   1         8
    324.0                   1         9
    322.5         1                  10
    312.0         1                  11
    309.0         1         1        12
    306.0                   1        14
    304.5         2                  15
    298.5         2                  17
    294.0         1                  19
    291.0         1                  20
    286.5         1         1        21
    282.0                   1        23
    280.5                   1        24
    274.5         1                  25
    273.0                   1        26
    271.5         4         1        27
    267.0         1                  32
    265.5         2         1        33
    264.0                   1        36
    261.0         2                  37
    258.0                   1        39
    255.0         1                  40
    253.5         1                  41
    252.0                   2        42
    250.5         2                  44
    247.5         3                  46
    244.5         2                  49
    243.0         2                  51
    241.5                   1        53
    240.0         1                  54
    238.5         1                  55
    237.0         1                  56
    235.5         1                  57
    234.0         1                  58
    232.5         1                  59
    231.0         2                  60
    229.5         2                  62
    228.0         1         1        64
    225.0         2                  66
    223.5                   1        68
    222.0         3         1        69
    220.5         1                  73
    219.0         1                  74
    217.5         1                  75
    214.5         1                  76
    208.5         1                  77
    196.5         1                  78
    193.5         1                  79
    187.5                   1        80
    142.5                   1        81
    118.5         1                  82
    114.0         1                  83
     94.5                   1        84
     84.0         1                  85
     82.5                   1        86
 


         2009 AMC Contest Score Distributions
    -----------------------------------------------
    score      12 A      12 B      10 A      10 B
    -----------------------------------------------
    150.0                             1         3
    144.0                             2         2
    141.0         1                             1
    139.5                   1         1
    138.0                             3         1
    136.5                             1
    135.0                             1         1
    133.5         1
    132.0         2                   4         1
    130.5         2         1         2         1
    129.0                   1
    127.5         1                   1
    126.0                   1         3         1
    124.5                   1         2
    123.0                             2         1
    121.5                             1         1
    120.0         1         1         3
    118.5         2                   2         1
    117.0                             3         2
    115.5                             4         2
    114.0                             4         3
    112.5         1         1                   1
    111.0         2         2         2         1
    109.5         1         1                   3
    108.0         3         5         5
    106.5         3         2         2         1
    105.0         4         1         5         2
    103.5         1         4         9
    102.0         7         6         4         2
    100.5        11         2         6         2
     99.0         7         1        15         3
     97.5         8         1        10         3
     96.0         9         4         7         4
     94.5        16         4         9         2
     93.0         9         2        10         5
     91.5         5         3        16         4
     90.0         9        10        19         1
     88.5        23         6        15         7
     87.0        16         7        11         9
     85.5        13         8        14         2
     84.0        27         7        33         5
     82.5        32        11        24         5
     81.0        29         3        30         5
     79.5        21         4        29         4
     78.0        47         7        30         5
     76.5        41         5        25         3
     75.0        32         9        32         4
     73.5        62         6        33         6
     72.0        75         7        34        10
     70.5        63         6        29         3
     69.0        78         5        39        12
     67.5        76         6        48         7
     66.0        83         7        43         9
     64.5       100        11        47         9
     63.0        98         8        41        11
     61.5        74        11        38         8
     60.0       100        14        47        10
     58.5        83        12        54         7
     57.0        60         6        49         7
     55.5        60        13        45        15
     54.0        82        15        56        10
     52.5        45        12        42        10
     51.0        42         3        34        13
     49.5        33         8        37        11
     48.0        54        13        47        14
     46.5        27         2        27         9
     45.0        17        10        36         5
     43.5        29         6        23         9
     42.0        41         5        37         7
     40.5        20         4        24        10
     39.0        17         2        12         3
     37.5        15        10        24         6
     36.0        17         9        22        12
     34.5         8         3         7         6
     33.0        11         1         8         3
     31.5         7         3        11         1
     30.0         9         4        15         5
     28.5         7         2         4         5
     27.0         3                   3         1
     25.5         6                   2
     24.0         6                   5         2
     22.5         1         1         1         1
     21.0         2                   2         1
     19.5         2         1         1         1
     18.0         1         1         3
     16.5                             1
     13.5                   1
     12.0                   2



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

    score ----gender-----------   -----------grade-----------------
            male   female    ?    <=6      7      8      9     10      ?
    ----------------------------------------------------------------------------------------
    150.0      1                                                1
    144.0      1      1                    1                    1
    139.5      1                           1
    138.0      2      1                           1      1      1
    136.5      1                                                1
    135.0      1                                         1
    132.0      1      2                    2             2
    130.5      2                                         2
    127.5             1                                  1
    126.0      2      1                                  2      1
    124.5      2                                         2
    123.0      1                                         1             1
    121.5      1                                         1
    120.0      3                                  1      1      1
    118.5      1      1                    1                    1
    117.0      3                                  1      1      1
    115.5      3                                                3      1
    114.0      4                                         2      2
    111.0      2                                         2
    108.0      4                                  2      3
    106.5      1      1                                  1      1
    105.0      3                                         4      1
    103.5      2      3                    1             1      2      5
    102.0      3                                  1             2      1
    100.5      3      2                                  2      3      1
     99.0     12      2             2      2             5      5      1
     97.5      7      1                           3      4      2      1
     96.0      3      1                           2             2      3
     94.5      6      1                           1      2      4      2
     93.0      6      1                    1      2      2      3      2
     91.5      8      4                           2      3      7      4
     90.0      9      7                           3      6      7      3
     88.5      8      4                    2      2      2      6      3
     87.0      6      1                                  6      3      2
     85.5      7      4                           2      5      7
     84.0     17     10             1             6      5     16      5
     82.5     13      7                    1      1     13      7      2
     81.0     19     11             1             3      9     17
     79.5     18      6             1             2      9     15      2
     78.0     18      6             1             2      7     17      3
     76.5     14      8                                 11     14
     75.0     20      8             2             4      8     16      2
     73.5     16     12             1      2      1      9     18      2
     72.0     16      8                                 11     16      7
     70.5     15     10                           2     15     10      2
     69.0     19     13                           3     14     17      5
     67.5     28     17                    1      1     18     27      1
     66.0     21     15                           3     15     20      5
     64.5     15     25                    1      2     17     21      6
     63.0     22     17                                 20     19      2
     61.5     19     15             1                   15     21      1
     60.0     19     19                           2     21     21      3
     58.5     19     27                                 24     28      2
     57.0     16     23                    1            18     25      5
     55.5     16     25             1             1     18     22      3
     54.0     18     27                           1     31     24
     52.5     15     25                           1     21     20
     51.0     11     20                                 13     19      2
     49.5     12     22                                 19     17      1
     48.0     19     21                    1            23     17      6
     46.5      5     17                                 15     11      1
     45.0     16     17                           1     19     15      1
     43.5      7     12                                 13      7      3
     42.0     15     18                                 15     20      2
     40.5      5     15                                 11     11      2
     39.0      5      7                                  9      2      1
     37.5      6     14                                 12     10      2
     36.0     11      9                                  7     14      1
     34.5      3      2                                  2      4      1
     33.0      3      4                                  5      2      1
     31.5      4      7                                  4      7
     30.0      8      7                                 11      4
     28.5      1      3                                  2      2
     27.0             3                                  2      1
     25.5             1                                  1             1
     24.0      4      1                                  3      2
     22.5             1                                         1
     21.0             2                                  2
     19.5             1                                         1
     18.0      1      2                                         3
     16.5             1                                         1



                   American Mathematics Competitions
                   2009 AMC 10 A Results for Indiana                    
                              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    0.07      0.35      0.42      6.84     91.91*     0.42      0.00
      2   93.02*     0.77      0.84      1.47      1.61      2.30      0.00
      3    3.28     11.65     67.06*     5.72      3.84      8.44      0.00
      4   25.68*     8.30      6.70      9.00     16.05     34.12      0.14
      5    9.63      6.63      6.35      3.28     44.73*    29.31      0.07
      6   57.85*     3.56      8.79      4.33      0.98     24.49      0.00
      7    6.98      3.98     27.29*     3.91     34.47     23.38      0.00
      8   13.96     74.60*     3.84      1.61      0.98      5.02      0.00
      9    9.07     22.75*     6.98      4.75      1.12     55.34      0.00
     10    4.54     22.19*     6.00     10.82      1.54     54.92      0.00
     11    3.14      3.00      3.42     56.59*     2.02     31.82      0.00
     12    4.33      6.98     23.31*     9.77      6.70     48.85      0.07
     13   19.89      4.12      3.63     14.72     11.72*    45.92      0.00
     14   37.61*     1.61      5.16      5.58     12.77     37.26      0.00
     15    2.65      4.61      4.68      7.33     45.57*    35.17      0.00
     16   23.45      5.58      4.47     10.05*     5.58     50.73      0.14
     17    3.91      9.56      7.33*     2.44      3.14     73.62      0.00
     18   19.05     13.19      6.91     16.26*     6.91     37.68      0.00
     19    7.40      9.98*     8.09      7.40      2.23     64.90      0.00
     20    8.23      9.00     11.72     33.08*     1.81     36.15      0.00
     21    2.09      3.21     12.98*     4.12      2.51     75.09      0.00
     22    6.98      6.84     29.38      7.47*     3.14     46.20      0.00
     23    3.91      3.07      5.93      4.12      8.09*    74.88      0.00
     24    9.77     13.12      6.77*     3.91      7.75     58.62      0.07
     25    6.84      4.95*     6.42      3.70      3.21     74.88      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 A Results for Indiana                    
                         SCORE DISTRIBUTION 

    score ----gender-----------   -----------grade-----------------
            male   female    ?    <=6      7      8      9     10     11     12     13      ?
    ----------------------------------------------------------------------------------------
    141.0      1                                                              1
    133.5      1                                                              1
    132.0      2                                         1                    1
    130.5      2                                         1             1
    127.5      1                                                              1
    120.0      1                                                       1
    118.5      1      1                                                2
    112.5      1                                                       1
    111.0      1                                                       1      1
    109.5      1                                                1
    108.0      2      1                                                1      2
    106.5      3                                                       1      2
    105.0      2                                         1                    3
    103.5             1                                                       1
    102.0      3      2                                  1             1      4             1
    100.5     10      1                                         2      4      5
     99.0      5                                                       1      4             2
     97.5      6      2                    1      1                    4      2
     96.0      4      4                                         1      5      2             1
     94.5     12      1                                         4      6      5             1
     93.0      6                                                       4      3             2
     91.5      4                                                              5
     90.0      2      6                                                6      1             2
     88.5     18      5                                         1     11     11
     87.0      8      4                                  1      4      4      4             3
     85.5     10      3                                         2      5      6
     84.0     21      5                                  1      3     12     11
     82.5     22      7                                         2     17     13
     81.0     23      4                                         1     15     12             1
     79.5     14      5                                  1      2      7      9             2
     78.0     29     13                                         5     19     22             1
     76.5     22     13                                         3     20     15             3
     75.0     22      8                                               17     15
     73.5     40     20                                  1      1     32     28
     72.0     49     19                                  2      8     34     29             2
     70.5     36     26                                  2      4     33     24
     69.0     35     35                                  2      7     36     31             2
     67.5     39     29                                  2      7     28     38             1
     66.0     47     29                                         5     42     33             3
     64.5     51     42                                         6     52     40             2
     63.0     45     50                                  3      8     46     40             1
     61.5     34     40                                  1      1     41     31
     60.0     53     39                                  2      9     51     37             1
     58.5     42     36                                  3      6     45     28             1
     57.0     25     31                                  1      5     32     21             1
     55.5     28     26                                  3      1     25     26      1      4
     54.0     46     33                                         5     45     30             2
     52.5     21     20                                  1      1     19     24
     51.0     19     20                                         4     23     14             1
     49.5     16     15                                  1      2     18     12
     48.0     29     23                                  1      4     25     24
     46.5     18      8                                  1      1     14     10             1
     45.0      9      7                                         1      8      8
     43.5      9     17                                  1      1     18      8             1
     42.0     19     18                                  1      2     23     14             1
     40.5      7     12                                  1            12      7
     39.0      9      7                                                5     12
     37.5      3     10                                               11      4
     36.0      9      7                                         2      8      6             1
     34.5      3      3                                                5      3
     33.0      4      6                                         2      4      5
     31.5      3      3                                         1      3      3
     30.0      2      7                                         1      6      2
     28.5      2      5                                                6      1
     27.0      1      2                                                2      1
     25.5      1      5                                                6
     24.0      6                                                       4      2
     22.5      1                                                       1
     21.0      1      1                                                2
     19.5             2                                                1      1
     18.0             1                                                1



                   American Mathematics Competitions
                   2009 AMC 12 A Results for Indiana                    
                              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   87.80*     6.73      0.89      0.58      1.63      2.37      0.00
      2    0.84      3.73     88.01*     3.47      2.16      1.79      0.00
      3    6.68     76.49*     3.63      6.21      2.52      4.47      0.00
      4   94.27*     0.95      0.84      0.68      1.89      1.37      0.00
      5    1.68      1.53      2.10     79.69*     1.63     13.31      0.05
      6   24.30      5.47      4.31     14.47     25.88*    25.51      0.05
      7    2.79     19.36*     8.57      3.68      2.52     62.97      0.11
      8   55.55*     1.68      7.15      5.21     11.47     18.88      0.05
      9    3.16      4.47      6.05     26.46*     6.15     53.66      0.05
     10    3.00      6.47     36.19*    10.36      7.94     36.03      0.00
     11    2.00      2.37      3.63      6.05     70.91*    14.99      0.05
     12   14.15     25.04*     5.94      8.68      3.10     42.92      0.16
     13   11.26     12.47     12.89     14.15*     5.52     43.56      0.16
     14    3.26      6.10*    10.36     14.78      7.21     58.29      0.00
     15    8.78      5.16     10.10     19.20*     6.05     50.71      0.00
     16   15.68      8.63      8.73      5.52*     4.31     57.08      0.05
     17    5.16      4.47      7.89*     5.37     10.42     66.60      0.11
     18   12.10      7.10*     6.84      3.05      4.42     66.49      0.00
     19    9.31     11.73      6.89*     8.47      9.10     54.50      0.00
     20    4.21      3.21      8.05      5.68     10.63*    68.23      0.00
     21    5.63      5.00      6.21*     2.89      5.47     74.80      0.00
     22    3.73      5.68      4.89      5.89      3.37*    76.38      0.05
     23    2.26      4.05      4.63      4.10*     0.95     83.96      0.05
     24   10.57      6.21      5.00      3.47      1.16*    73.59      0.00
     25    3.21*     4.94      6.15      6.68      7.73     71.28      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 10 B Results for Indiana                    
                         SCORE DISTRIBUTION 

    score ----gender-----------   -----------grade-----------------
            male   female    ?    <=6      7      8      9     10      ?
    ----------------------------------------------------------------------------------------
    150.0      3                                         2      1
    144.0      2                           1             1
    141.0      1                                         1
    138.0                                                       1
    135.0      1                                         1
    132.0             1                                  1
    130.5      1                                         1
    126.0             1                                  1
    123.0      1                                                1
    121.5      1                                         1
    118.5      1                                         1
    117.0      2                                  1             1
    115.5      1                                                1      1
    114.0      3                                  2             1
    112.5      1                           1
    111.0      1                                                1
    109.5      3                           1      1      1
    106.5             1                                         1
    105.0      2                                                2
    102.0      2                                  1             1
    100.5      1                                         2
     99.0      2      1                           2             1
     97.5      2      1                           1      1      1
     96.0      2      1             1             1      1      1
     94.5      1      1                           2
     93.0      1      1                           1      3             1
     91.5      2      2                           1      3
     90.0                                                       1
     88.5      6                                  1      2      4
     87.0      7      1                           1      4      3      1
     85.5      1      1                           1      1
     84.0      5                                                5
     82.5      3      2                           1      4
     81.0      4      1             1             1      1      2
     79.5      2      2                           1      1      2
     78.0      1      1             1                    2      1      1
     76.5      2      1                                  3
     75.0      3      1                           1             3
     73.5      4      2             1             1      2      2
     72.0      6      2                                  3      6      1
     70.5      2      1                                  1      2
     69.0      5      4                                  6      4      2
     67.5      2      3                           1      1      3      2
     66.0      5      1                                  4      4      1
     64.5      7      1                           1             7      1
     63.0      5      4                                  3      6      2
     61.5      3      2                                  4      1      3
     60.0      2      5                                  3      4      3
     58.5      1      4                                  2      4      1
     57.0      4      2                                  1      5      1
     55.5      6      4                                  3      9      3
     54.0      4      5                                  3      6      1
     52.5      3      6                                  1      8      1
     51.0      3      5                                  2      5      6
     49.5      3      2                                  2      4      5
     48.0      9      1             1                    4      5      4
     46.5      2      2                                  3      2      4
     45.0      1      2                                  1      2      2
     43.5      4      3                                  3      4      2
     42.0      1      4                                  1      5      1
     40.5      5      1                                  2      4      4
     39.0             1                                  2             1
     37.5      1      2                                  2             4
     36.0      3      3             1                    3      2      6
     34.5      1      1                                  1      1      4
     33.0      1      1                                  1      1      1
     31.5             1                                         1
     30.0             2                                         2      3
     28.5      1      2                                         4      1
     27.0             1                                         1
     24.0             1                                  1             1
     22.5                                                              1
     21.0                                                              1
     19.5      1                                         1



                   American Mathematics Competitions
                   2009 AMC 10 B Results for Indiana                    
                              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    0.55     73.28*     4.68     17.91      1.65      1.93      0.00
      2    3.58      1.93     88.98*     0.55      0.83      4.13      0.00
      3    2.75      7.71     65.84*    14.88      1.65      7.16      0.00
      4    2.20      4.13     67.77*     9.09      3.03     13.77      0.00
      5   13.22      4.68     21.76     44.90*     2.75     12.40      0.28
      6    1.65      2.20      7.71     66.67*     4.68     17.08      0.00
      7   17.63     18.46     47.38*     7.44      4.41      4.68      0.00
      8    2.75     29.20*     8.26     41.05      3.03     15.70      0.00
      9   32.51*     6.34      4.96     11.29      2.75     42.15      0.00
     10   11.29      3.58      4.13      5.23     34.99*    40.50      0.28
     11   64.19*     5.79      5.23      5.51      3.86     15.43      0.00
     12   27.27*    11.85      7.71     13.22      9.09     30.85      0.00
     13    3.31     15.98     33.06*     8.54     12.12     27.00      0.00
     14    6.06     27.82     24.24     15.43*     7.16     19.01      0.28
     15   11.85     14.33      5.51      8.26     39.12*    20.94      0.00
     16    4.41     13.50*     6.34      2.75      4.41     68.60      0.00
     17   26.72     19.56     18.46*     1.65      1.65     31.96      0.00
     18    4.13      6.61      9.09     12.40*     6.06     61.71      0.00
     19   21.21*    24.52     14.88      8.26      3.31     27.82      0.00
     20    5.51     14.88*     7.71      3.58      2.48     65.84      0.00
     21    6.06     11.85      6.06     16.25*     5.23     54.55      0.00
     22    3.03      7.71*     6.89      4.96      2.48     74.93      0.00
     23    7.71      9.64     11.85*     9.92      6.61     54.27      0.00
     24   16.80*     6.61      6.61      5.51      4.68     59.78      0.00
     25   16.80     18.46*    12.67      7.71      8.82     35.54      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 Indiana                    
                         SCORE DISTRIBUTION 

    score ----gender-----------   -----------grade-----------------
            male   female    ?    <=6      7      8      9     10     11     12     13      ?
    ----------------------------------------------------------------------------------------
    139.5      1                                                              1
    130.5      1                                                       1
    129.0      1                                                       1
    126.0      1                           1
    124.5             1                                                1
    120.0      1                                                       1
    112.5      1                                                              1
    111.0      2                                                       2
    109.5             1                                                       1
    108.0      3      1                                                       4             1
    106.5      1                                                              2
    105.0                                  1
    103.5      3                                                       2      2
    102.0      4      1                                  1      1      3      1
    100.5             2                                                1      1
     99.0                                                                     1
     97.5      1                                                       1
     96.0      3      1                                                2      2
     94.5      2      1                                  1                    2             1
     93.0             2                                  1             1
     91.5      1                                                1      1      1
     90.0      5      4                                                5      4             1
     88.5      4      1                                                2      4
     87.0      4      1                                                2      5
     85.5      5      1                                                4      4
     84.0      7                                                1      5      1
     82.5      8      2                                                6      5
     81.0      2                                                       1      1             1
     79.5      4                                                              4
     78.0      4      3                                                3      4
     76.5      5                                                1             4
     75.0      7      2                                                6      3
     73.5      5      1                                                3      3
     72.0      5      1                                                3      4
     70.5      3      3                                                3      3
     69.0      4      1                                                4      1
     67.5      3      2                                                4      2
     66.0      7                                                1      2      4
     64.5      5      5                                                5      6
     63.0      3      5                                  1      1      1      5
     61.5      6      5                                                6      5
     60.0      8      6                                                6      7             1
     58.5      7      4                                  1      3      3      5
     57.0      2      3                                  1             2      3
     55.5      7      3                                                1     10             2
     54.0      8      7                                         1      7      7
     52.5      3      5                                                4      7             1
     51.0      2      1                                         1      1      1
     49.5      2      3                                         1      1      4             2
     48.0      5      4                                  1      1      6      2             3
     46.5      1                                                              1             1
     45.0      5      3                                  2      1      3      2             2
     43.5      1      5                                  1             2      3
     42.0      1      2                                         1             2             2
     40.5      1      2                                                3                    1
     39.0                                                              1                    1
     37.5      1      2                                         1      2                    7
     36.0      4      3                                                3      5             1
     34.5      2                                         1                    1             1
     33.0                                                                                   1
     31.5             3                                                2      1
     30.0      4                                                1      2      1
     28.5             2                                                1      1
     22.5      1                                         1
     19.5      1                                                              1
     18.0      1                                                              1
     13.5                                                                                   1
     12.0      2                                                              2



                   American Mathematics Competitions
                   2009 AMC 12 B Results for Indiana                    
                              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     79.55*     4.55     10.23      3.41      1.99      0.00
      2    1.42      3.13     78.13*    12.22      0.85      3.98      0.28
      3    9.94      1.99     21.59     56.82*     0.85      8.81      0.00
      4    2.84      2.84     76.70*     9.94      1.14      6.25      0.28
      5    0.57      1.14      4.83     82.10*     2.84      8.52      0.00
      6   10.51     13.64     61.08*     7.95      3.69      2.84      0.28
      7    2.27     45.45*     7.39     31.53      4.26      9.09      0.00
      8    4.26      8.52      4.83      5.68     61.36*    15.34      0.00
      9   55.40*     8.24      3.41      6.25      1.14     25.57      0.00
     10   37.50*    19.32     11.65      8.52      4.83     17.90      0.28
     11    2.84     27.27     24.15     23.30*     5.40     17.05      0.00
     12    2.27      4.26      5.68      5.97     30.68*    51.14      0.00
     13    6.53      3.98      5.11     22.16*     6.53     55.68      0.00
     14   15.63     17.61     30.11*     1.99      1.99     32.67      0.00
     15    1.14     44.89*    13.07      9.09      5.68     26.14      0.00
     16    5.97      5.68*     5.68      5.11      2.27     75.28      0.00
     17   27.56     21.02*     8.81      6.53      6.25     29.83      0.00
     18    8.24      9.94     19.03*     7.39      6.82     48.58      0.00
     19    3.69      6.25      5.97      3.41      4.26*    76.42      0.00
     20    5.68      5.97      5.40*     1.99      4.26     76.70      0.00
     21    8.52*     6.82      8.24     12.22     24.43     39.49      0.28
     22    2.27      5.40      6.82*     9.94      1.70     73.86      0.00
     23    2.84      5.97      6.25      3.98*     3.98     76.99      0.00
     24   12.78      8.52*     3.41      6.25      1.99     67.05      0.00
     25   10.23      6.25      6.25      6.25      3.69*    67.33      0.00


   (*)  Correct Response

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