2004 AMC8 Report for all schools in Missouri
Number of schools returning results 52
Average of school highest score 18.00
Average school team score 49.35
# of State Student Participants 3205
Overall State Average Score 9.88
Average Score by Grade level
Grade # of Students Average
5th 19 9.63
6th 175 9.32
7th 832 9.85
8th 2123 9.93
Number of Female Students 1439
Average Score of Female Students 9.44
Average Female Scores by Grade
Grade # of Students Average
5th 6 7.00
6th 79 8.66
7th 345 9.54
8th 997 9.47
Number of Male Participants 1694
Average Score of Male Participants 10.30
Average score for Males by Grade
Grade # of Students Average
5th 13 10.85
6th 95 9.88
7th 466 10.12
8th 1095 10.38
2004 American Mathematics Contest 8
Number of Students Achieving Indicated Score
SCORE MALE FEMALE TOTAL*
25 1 0 1
24 2 0 2
23 4 1 5
22 4 1 5
21 8 3 11
20 14 9 23
19 20 8 28
18 20 5 25
17 35 17 52
16 55 33 89
15 60 48 116
14 102 54 158
13 112 78 194
12 155 119 275
11 146 129 283
10 190 157 354
9 176 164 349
8 184 165 358
7 145 153 304
6 112 133 248
5 88 72 164
4 34 55 94
3 16 20 37
2 5 9 17
1 4 4 8
0 (@) 0 1 1
0 ($) 2 1 4
(@) These students attempted some of the problems
($) These students attempted none of the problems
(*) Total includes students who failed to mark their gender
2004 American Mathematics Contest 8
Number of Students by Grade
Achieving indicated Score
SCORE 5th Grade 6th Grade 7th Grade 8th Grade
25 0 0 0 1
24 0 0 0 2
23 0 0 0 5
22 0 0 1 3
21 0 0 2 9
20 2 1 3 17
19 0 2 9 17
18 0 0 8 16
17 0 3 14 34
16 0 5 25 59
15 0 6 27 78
14 0 5 35 113
13 0 6 52 133
12 3 11 73 183
11 1 11 70 194
10 0 23 98 227
9 3 23 96 223
8 4 27 100 222
7 2 15 81 198
6 3 18 57 168
5 1 12 45 105
4 0 4 21 68
3 0 3 9 25
2 0 0 5 12
1 0 0 0 8
0(@) 0 0 1 3
0($) 0 0 0 0
(@) These students attempted some of the problems
($) These students attempted none of the problems
Note: Some students failed to indicate a grade
Table of Item Difficulty for the 2004
American Mathematics Contest 8
Tabulation of responses by 3205 Students
Percent of Responses
ITEM A B C D E OMITS ?
____ _____ _____ _____ _____ _____ _____ _____
1 1.37 90.45* 3.78 1.25 2.65 0.50 0.00
2 6.18 41.06* 40.90 10.05 1.12 0.66 0.03
3 72.54* 15.51 6.05 2.65 1.78 1.44 0.03
4 2.84 48.71* 20.50 14.04 13.20 0.69 0.03
5 9.80 3.03 19.47 59.97* 7.33 0.37 0.03
6 19.72 16.72 53.23* 5.74 3.34 1.25 0.00
7 1.75 44.52* 5.27 43.31 4.31 0.75 0.09
8 25.62 49.30* 11.48 4.77 7.21 1.50 0.12
9 9.92 13.10 15.23 36.32* 22.71 2.65 0.06
10 3.84 6.68 5.05 24.59 58.91* 0.84 0.09
11 6.83 22.06 57.75* 6.74 5.09 1.47 0.06
12 25.02 21.78* 15.54 25.05 10.98 1.59 0.03
13 34.60 8.14 13.57 16.54 25.65* 1.44 0.06
14 13.88 29.77 36.13* 14.23 3.74 2.22 0.03
15 14.23 12.42 40.75* 13.82 17.41 1.31 0.06
16 5.68 8.99 17.85* 6.08 58.78 2.50 0.12
17 4.21 21.00 25.90 25.87* 20.12 2.71 0.19
18 43.90* 6.43 18.44 21.44 6.27 3.43 0.09
19 22.71 36.66* 18.03 10.11 7.68 4.74 0.06
20 11.76 22.53 27.05 25.96* 8.27 4.34 0.09
21 12.20 19.00 21.59 23.56* 18.78 4.74 0.12
22 10.55 16.63* 14.07 9.45 43.62 5.34 0.34
23 42.28 8.99 7.99 21.65* 13.82 5.05 0.22
24 15.41 20.94 25.99* 16.10 13.01 8.39 0.16
25 15.98 26.99 16.04 13.20* 19.66 8.08 0.06
(*) Correct Response
(?) Response the computer was unable to read due to incomplete
erasures or two answers marked for the same problem