American Mathematics Competitions
2008 AMC 10 A Results for Delaware
GRAND STATISTICS
TOTAL NUMBER of official students taking exam: 329
Number of unofficial participants: 0
Average score of participants: 51.4
Average score for female students is: 47.6 ( 149 Students)
Average score for male students is: 54.7 ( 134 Students)
Average score for unspecified gender is 54.0 ( 46 Students)
Average score for grade 10 is: 54.4 ( 145 Students)
Average score for grade 9 is: 48.8 ( 164 Students)
Average score with unknown grade: 50.3 ( 20 Students)
AIME qualifying score = 117.0 or better
Number of AIME qualifers 1
Number of schools returning results 10
Average school winning score 89.25
American Mathematics Competitions
2008 AMC 12 A Results for Delaware
GRAND STATISTICS
TOTAL NUMBER of official students taking exam: 322
Number of unofficial participants: 0
Average score of participants: 66.4
Average score for female students is: 62.7 ( 118 Students)
Average score for male students is: 69.3 ( 153 Students)
Average score for unspecified gender is 66.1 ( 51 Students)
Average score for grade 12 is: 69.3 ( 129 Students)
Average score for grade 11 is: 62.9 ( 155 Students)
Average score for grade 10 is: 73.3 ( 31 Students)
Average score with unknown grade: 61.7 ( 7 Students)
AIME qualifying score = 97.5 or better
Number of AIME qualifers 22
Number of schools returning results 10
Average school winning score 102.60
Average school team score 285.90
American Mathematics Competitions
2008 AMC 10 B Results for Delaware
GRAND STATISTICS
TOTAL NUMBER of official students taking exam: 56
Number of unofficial participants: 0
Average score of participants: 57.3
Average score for female students is: 57.9 ( 35 Students)
Average score for male students is: 55.8 ( 18 Students)
Average score for unspecified gender is 59.5 ( 3 Students)
Average score for grade 10 is: 59.7 ( 30 Students)
Average score for grade 9 is: 54.7 ( 25 Students)
Average score with unknown grade: 54.0 ( 1 Student)
AIME qualifying score = 120.0 or better
Number of AIME qualifers 0
Number of schools returning results 2
Average school winning score 83.25
American Mathematics Competitions
2008 AMC 12 B Results for Delaware
GRAND STATISTICS
TOTAL NUMBER of official students taking exam: 67
Number of unofficial participants: 0
Average score of participants: 63.1
Average score for female students is: 60.2 ( 37 Students)
Average score for male students is: 63.8 ( 27 Students)
Average score for unspecified gender is 91.5 ( 3 Students)
Average score for grade 12 is: 62.8 ( 27 Students)
Average score for grade 11 is: 61.6 ( 38 Students)
Average score for grade 10 is: 115.5 ( 1 Student)
Average score with unknown grade: 73.5 ( 1 Student)
AIME qualifying score = 97.5 or better
Number of AIME qualifers 2
Number of schools returning results 4
Average school winning score 96.38
Average school team score 175.88
2008 State AMC 12 TEAM Score Distribution
-----------------------------------------------
score A B Rank
-----------------------------------------------
342.0 1 1
321.0 1 2
300.0 1 3
295.5 1 4
289.5 1 5
283.5 1 6
279.0 1 7
267.0 1 8
261.0 1 9
246.0 1 10
235.5 1 11
225.0 1 12
115.5 1 13
102.0 1 14
2008 AMC Contest Score Distributions
-----------------------------------------------
score 12 A 12 B 10 A 10 B
-----------------------------------------------
126.0 1 1
118.5 1
115.5 1
114.0 1
112.5 1 1
109.5 2
108.0 4 2
106.5 1
105.0 3
103.5 2
102.0 1 1
100.5 2
99.0 4
97.5 1
96.0 1
94.5 4 1
93.0 1
91.5 4 2 1
90.0 5
88.5 5
87.0 7 1
85.5 3 1 1
84.0 5
82.5 7 2
81.0 3 5 1
79.5 14 4
78.0 5 1 2 2
76.5 9 3 3 1
75.0 12 3 2 2
73.5 12 3 6 1
72.0 8 6 3
70.5 13 2 3 3
69.0 7 3 6 2
67.5 3 3 1
66.0 13 1 10 5
64.5 7 5 4 2
63.0 10 2 7 1
61.5 9 2 9 2
60.0 9 4 9 2
58.5 12 1 10 3
57.0 9 3 11 3
55.5 8 4 10 2
54.0 8 4 11 1
52.5 8 3 11 1
51.0 14 2 10 1
49.5 15 2 9 2
48.0 4 3 17 2
46.5 7 1 9 4
45.0 5 13 1
43.5 6 2 17 2
42.0 8 1 17 1
40.5 4 15
39.0 2 12 3
37.5 7 9 1
36.0 7 1 13
34.5 4 1
33.0 1 8 1
31.5 10
30.0 1 4
28.5 4
27.0 4
25.5 3
24.0 1 2
22.5 2
19.5 1
16.5 1
15.0 1
12.0 1
6.0 1
American Mathematics Competitions
2008 AMC 10 A Results for Delaware
SCORE DISTRIBUTION
score ----gender----------- -----------grade-----------------
male female ? <=6 7 8 9 10 ?
----------------------------------------------------------------------------------------
126.0 1
112.5 1
108.0 2 1 1
106.5 1 1
97.5 1 1
96.0 1 1
94.5 1 1
93.0 1 1
91.5 1 1
87.0 1 1
85.5 1
82.5 2 2
81.0 3 1 2 2 1
79.5 2 1 4
78.0 1 1 2
76.5 3 3
75.0 1 1 2
73.5 5 1 3 3
72.0 2 1 3
70.5 3 2 1
69.0 5 1 4 2
67.5 2 1 2 1
66.0 1 6 2 5 3
64.5 2 1 4
63.0 4 1 4 3
61.5 4 4 3 6
60.0 3 5 4 5
58.5 3 4 8 2
57.0 4 5 6 5
55.5 4 3 4 5 1
54.0 4 6 6 4 1
52.5 5 5 4 7
51.0 4 3 4 5 1
49.5 3 5 4 4 1
48.0 6 8 8 6 3
46.5 2 7 4 5
45.0 7 4 11 1 1
43.5 9 6 9 7 1
42.0 5 8 12 3 2
40.5 3 12 10 5
39.0 5 7 8 4
37.5 1 7 4 5
36.0 9 4 9 3 1
34.5 1 3 2 2
33.0 5 3 4 4
31.5 3 4 5 4 1
30.0 1 2 3 1
28.5 2 1 2 2
27.0 3 2 2
25.5 3 2 1
24.0 2 2
22.5 1 1 2
19.5 1 1
16.5 1
12.0 1 1
6.0 1 1
American Mathematics Competitions
2008 AMC 10 A Results for Delaware
Analysis
Table of Item Difficulty for the 2008
American High School Mathematics Examination
Tabulation of responses for all Participants
Percent of Responses
ITEM A B C D E OMITS ?
____ _____ _____ _____ _____ _____ _____ _____
1 1.52 0.91 10.94 81.46* 3.95 1.22 0.00
2 37.08* 18.24 31.00 1.82 0.91 10.94 0.00
3 69.30* 4.56 3.04 2.43 4.86 15.81 0.00
4 2.74 5.47 53.50* 12.16 4.86 20.97 0.30
5 8.81 23.71* 4.26 5.17 5.17 52.89 0.00
6 2.74 2.43 2.43 13.98* 51.06 27.36 0.00
7 45.59 3.95 6.99 2.43 8.21* 32.83 0.00
8 37.99* 6.38 2.74 22.49 5.47 24.62 0.30
9 4.86 20.36* 18.84 29.18 6.99 19.76 0.00
10 1.22 41.95 6.38 0.91 37.39* 12.16 0.00
11 5.78 5.17 8.81 52.89* 11.25 15.81 0.30
12 13.37 3.04 27.36* 8.21 3.04 44.98 0.00
13 13.68 32.52 11.55 17.02* 2.74 22.49 0.00
14 5.47 6.08 5.78 12.77* 7.90 62.01 0.00
15 2.13 1.22 31.91 18.54* 6.08 40.12 0.00
16 1.82 10.33* 5.17 17.33 6.99 58.05 0.30
17 7.60 8.51* 4.56 6.69 3.95 68.69 0.00
18 3.34 6.69* 3.34 3.95 3.04 79.64 0.00
19 4.56 6.69 5.78* 2.43 5.47 75.08 0.00
20 2.13 3.65 19.45 4.56* 3.95 66.26 0.00
21 6.08* 22.80 6.08 7.90 3.34 53.80 0.00
22 6.99 6.69 24.01 20.36* 5.78 36.17 0.00
23 6.38 5.17* 4.86 5.17 3.34 75.08 0.00
24 6.99 9.73 4.56 7.60* 9.42 61.70 0.00
25 1.82 6.08 5.17* 4.26 4.26 78.42 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
2008 AMC 12 A Results for Delaware
SCORE DISTRIBUTION
score ----gender----------- -----------grade-----------------
male female ? <=6 7 8 9 10 11 12 13 ?
----------------------------------------------------------------------------------------
126.0 1 1
118.5 1 1
114.0 1 1
112.5 1 1
109.5 2 1 1
108.0 2 1 2 2
105.0 1 1 1 1
103.5 1 1 2
102.0 1 1
100.5 2 1 1
99.0 1 1 1 1 2
94.5 1 2 1 3
91.5 1 1 4
90.0 4 1 3 2
88.5 3 1 1 2 2
87.0 5 1 5 2
85.5 2 1 2 1
84.0 3 1 5
82.5 4 2 2 3 2
81.0 2 1 1 2
79.5 9 4 6 8
78.0 2 2 1 4
76.5 6 3 2 2 5
75.0 10 2 3 2 7
73.5 7 5 9 3
72.0 4 3 4 4
70.5 7 4 1 6 6
69.0 4 2 6 1
67.5 3 1 1 1
66.0 5 5 7 6
64.5 2 4 1 3 3
63.0 5 5 1 4 5
61.5 4 1 4 4 1
60.0 3 4 1 7 1
58.5 3 6 1 7 4
57.0 3 5 4 5
55.5 2 4 1 6 1
54.0 4 2 5 1 2
52.5 2 3 1 3 4
51.0 3 7 2 8 4
49.5 5 9 11 4
48.0 1 2 1 2 1
46.5 1 4 3 4
45.0 2 3 1 2 2
43.5 2 4 5 1
42.0 6 1 4 2 1
40.5 1 1 3 1
39.0 2 1 1
37.5 2 5 1 3 3
36.0 5 2 1 4 2
30.0 1 1
24.0 1 1
American Mathematics Competitions
2008 AMC 12 A Results for Delaware
Analysis
Table of Item Difficulty for the 2008
American High School Mathematics Examination
Tabulation of responses for all Participants
Percent of Responses
ITEM A B C D E OMITS ?
____ _____ _____ _____ _____ _____ _____ _____
1 1.55 0.62 5.59 90.68* 1.24 0.31 0.00
2 96.89* 0.62 0.93 0.00 1.55 0.00 0.00
3 1.55 4.35 73.60* 9.63 3.11 7.76 0.00
4 4.97 48.14* 4.04 9.32 3.42 30.12 0.00
5 1.86 45.96* 7.14 30.12 5.59 9.32 0.00
6 53.73* 7.14 0.93 27.33 0.93 9.94 0.00
7 5.59 1.24 3.73 72.67* 5.90 10.87 0.00
8 3.42 5.28 67.39* 0.93 10.56 12.42 0.00
9 2.17 9.63 3.11 36.34* 2.17 46.58 0.00
10 9.94 27.95 8.07 36.34* 1.55 16.15 0.00
11 5.59 2.48 66.15* 5.90 2.48 17.39 0.00
12 13.04 26.09* 7.14 6.21 5.28 42.24 0.00
13 4.35 25.16* 6.83 14.91 6.52 41.93 0.31
14 9.01* 5.28 1.86 4.04 1.24 78.57 0.00
15 8.70 5.28 9.32 9.94* 12.11 54.66 0.00
16 3.42 2.80 5.90 8.07* 2.48 77.33 0.00
17 1.55 2.48 4.97 4.97* 5.59 80.43 0.00
18 1.86 2.80 6.83* 1.24 7.76 79.50 0.00
19 1.24 4.97 5.59* 4.97 1.24 81.99 0.00
20 0.31 2.80 1.55 3.11 3.42* 88.82 0.00
21 4.97 2.80 1.24 5.90* 2.17 82.92 0.00
22 1.24 5.59 6.21* 4.66 3.42 78.88 0.00
23 2.17 1.24 1.86 0.62* 0.31 93.79 0.00
24 3.11 9.32 4.04 2.48* 8.07 72.98 0.00
25 1.55 1.86 3.73 4.04* 0.93 87.89 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
2008 AMC 10 B Results for Delaware
SCORE DISTRIBUTION
score ----gender----------- -----------grade-----------------
male female ? <=6 7 8 9 10 ?
----------------------------------------------------------------------------------------
85.5 1 1
81.0 1 1
78.0 1 2
76.5 1 1
75.0 1 1 1 1
73.5 1 1
70.5 1 2 1 2
69.0 1 1 1 1
67.5 1 1
66.0 1 4 2 3
64.5 2 2
63.0 1 1
61.5 2 2
60.0 1 1 1 1
58.5 3 3
57.0 2 1 1 2
55.5 2 2
54.0 1
52.5 1 1
51.0 1 1
49.5 1 1 1 1
48.0 1 1 2
46.5 1 2 3 1
45.0 1 1
43.5 2 2
42.0 1 1
39.0 2 1 1 2
37.5 1 1
34.5 1 1
33.0 1 1
15.0 1 1
American Mathematics Competitions
2008 AMC 10 B Results for Delaware
Analysis
Table of Item Difficulty for the 2008
American High School Mathematics Examination
Tabulation of responses for all Participants
Percent of Responses
ITEM A B C D E OMITS ?
____ _____ _____ _____ _____ _____ _____ _____
1 7.14 0.00 1.79 12.50 76.79* 1.79 0.00
2 5.36 78.57* 3.57 5.36 1.79 5.36 0.00
3 8.93 1.79 5.36 8.93* 10.71 64.29 0.00
4 7.14 17.86 53.57* 1.79 3.57 16.07 0.00
5 32.14* 10.71 1.79 0.00 1.79 53.57 0.00
6 5.36 1.79 28.57* 8.93 3.57 51.79 0.00
7 5.36 1.79 76.79* 3.57 7.14 5.36 0.00
8 3.57 8.93 46.43* 12.50 5.36 23.21 0.00
9 7.14* 1.79 8.93 8.93 7.14 66.07 0.00
10 8.93* 0.00 0.00 3.57 1.79 85.71 0.00
11 0.00 3.57* 5.36 8.93 0.00 82.14 0.00
12 67.86* 8.93 3.57 0.00 0.00 19.64 0.00
13 30.36 5.36* 5.36 1.79 1.79 55.36 0.00
14 8.93 19.64* 0.00 7.14 0.00 64.29 0.00
15 3.57* 1.79 3.57 3.57 1.79 85.71 0.00
16 32.14* 19.64 1.79 5.36 0.00 41.07 0.00
17 10.71 8.93* 19.64 16.07 12.50 32.14 0.00
18 8.93 5.36* 10.71 3.57 3.57 67.86 0.00
19 3.57 1.79 3.57 3.57 0.00* 87.50 0.00
20 8.93 28.57* 10.71 8.93 7.14 35.71 0.00
21 1.79 8.93 1.79* 5.36 10.71 71.43 0.00
22 10.71 8.93 17.86* 10.71 8.93 42.86 0.00
23 5.36 7.14* 5.36 3.57 1.79 76.79 0.00
24 1.79 5.36 8.93* 8.93 5.36 69.64 0.00
25 8.93 8.93* 8.93 3.57 1.79 67.86 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
2008 AMC 12 B Results for Delaware
SCORE DISTRIBUTION
score ----gender----------- -----------grade-----------------
male female ? <=6 7 8 9 10 11 12 13 ?
----------------------------------------------------------------------------------------
115.5 1
102.0 1
91.5 2 2
78.0 1 1
76.5 2 1 1 2
75.0 1 2 2 1
73.5 2 1 2 1
72.0 2 4 3 3
70.5 2 2
69.0 1 2 2 1
66.0 1 1
64.5 1 4 3 2
63.0 1 1 2
61.5 2 1 1
60.0 2 2 1 3
58.5 1 1
57.0 1 1 2 1
55.5 1 3 2 2
54.0 1 3 2 2
52.5 1 2 2 1
51.0 1 1 1 1
49.5 2 1 1
48.0 2 1 1 2
46.5 1 1
43.5 2 1 1
42.0 1 1
36.0 1 1
33.0 1 1
American Mathematics Competitions
2008 AMC 12 B Results for Delaware
Analysis
Table of Item Difficulty for the 2008
American High School Mathematics Examination
Tabulation of responses for all Participants
Percent of Responses
ITEM A B C D E OMITS ?
____ _____ _____ _____ _____ _____ _____ _____
1 0.00 1.49 2.99 8.96 86.57* 0.00 0.00
2 5.97 83.58* 7.46 0.00 0.00 2.99 0.00
3 5.97 7.46 76.12* 2.99 1.49 5.97 0.00
4 1.49 5.97 1.49 61.19* 4.48 25.37 0.00
5 0.00 2.99 71.64* 4.48 7.46 13.43 0.00
6 85.07* 1.49 1.49 0.00 2.99 7.46 1.49
7 62.69* 4.48 0.00 4.48 4.48 23.88 0.00
8 4.48 0.00 52.24* 10.45 4.48 28.36 0.00
9 8.96* 1.49 1.49 7.46 2.99 77.61 0.00
10 4.48 28.36* 14.93 2.99 1.49 47.76 0.00
11 1.49* 10.45 4.48 4.48 31.34 47.76 0.00
12 17.91 7.46* 5.97 5.97 2.99 59.70 0.00
13 0.00 8.96* 1.49 1.49 1.49 86.57 0.00
14 2.99 4.48 16.42* 5.97 4.48 65.67 0.00
15 1.49 7.46 2.99* 1.49 0.00 86.57 0.00
16 11.94 16.42* 1.49 2.99 2.99 64.18 0.00
17 5.97 2.99 2.99* 2.99 4.48 80.60 0.00
18 8.96 2.99 1.49 7.46 2.99* 76.12 0.00
19 4.48 2.99* 0.00 1.49 1.49 89.55 0.00
20 19.40 11.94* 4.48 5.97 1.49 56.72 0.00
21 1.49 1.49 1.49 0.00 1.49* 94.03 0.00
22 4.48 1.49 5.97 7.46 8.96* 71.64 0.00
23 4.48* 4.48 0.00 5.97 0.00 85.07 0.00
24 0.00 4.48 0.00* 1.49 1.49 92.54 0.00
25 2.99 1.49* 5.97 1.49 2.99 85.07 0.00
(*) Correct Response
(?) Response the computer was unable to read due to incomplete
erasures or two answers marked in the same column