2004 AMC8 Report for all schools in Colorado
Number of schools returning results 35
Average of school highest score 18.09
Average school team score 50.00
# of State Student Participants 1703
Overall State Average Score 10.30
Average Score by Grade level
Grade # of Students Average
5th 51 7.53
6th 246 9.42
7th 421 10.32
8th 963 10.66
Number of Female Students 750
Average Score of Female Students 9.80
Average Female Scores by Grade
Grade # of Students Average
5th 20 7.65
6th 107 8.20
7th 184 9.90
8th 435 10.23
Number of Male Participants 913
Average Score of Male Participants 10.74
Average score for Males by Grade
Grade # of Students Average
5th 31 7.45
6th 137 10.35
7th 223 10.79
8th 511 11.02
2004 American Mathematics Contest 8
Number of Students Achieving Indicated Score
SCORE MALE FEMALE TOTAL*
25 0 0 0
24 1 1 2
23 0 1 1
22 3 1 4
21 2 0 3
20 5 3 8
19 11 3 14
18 21 7 28
17 26 7 34
16 37 19 58
15 43 30 73
14 71 40 113
13 86 58 147
12 71 59 133
11 70 70 142
10 104 74 185
9 93 79 176
8 67 92 163
7 76 77 154
6 58 61 122
5 31 34 67
4 26 18 47
3 6 9 15
2 3 5 8
1 1 1 2
0 (@) 0 0 0
0 ($) 1 1 4
(@) These students attempted some of the problems
($) 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 0
24 0 0 0 2
23 0 0 0 1
22 0 1 0 3
21 0 0 1 2
20 0 1 0 7
19 0 0 4 10
18 0 5 8 14
17 0 2 13 19
16 1 7 12 37
15 0 6 18 49
14 3 13 27 68
13 3 24 32 86
12 0 11 33 88
11 0 15 41 86
10 5 23 51 102
9 2 18 43 106
8 9 32 40 82
7 8 37 38 70
6 7 24 28 62
5 6 10 17 34
4 3 10 7 26
3 2 5 5 3
2 0 1 1 6
1 1 1 0 0
0(@) 1 0 2 0
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 1703 Students
Percent of Responses
ITEM A B C D E OMITS ?
____ _____ _____ _____ _____ _____ _____ _____
1 1.88 91.13* 3.76 1.29 1.47 0.47 0.00
2 5.05 38.17* 42.57 12.51 0.94 0.76 0.00
3 75.63* 13.15 6.81 1.59 1.64 1.17 0.00
4 2.52 49.32* 22.25 13.45 11.98 0.47 0.00
5 11.33 2.64 16.79 60.78* 8.04 0.41 0.00
6 18.97 16.74 52.91* 6.17 3.93 1.29 0.00
7 2.47 48.74* 6.11 38.76 3.29 0.59 0.06
8 26.37 49.15* 11.51 5.17 5.81 1.88 0.12
9 9.69 13.92 14.27 39.93* 20.08 1.94 0.18
10 3.29 5.99 4.82 23.02 62.18* 0.65 0.06
11 5.87 16.62 63.30* 8.04 4.52 1.59 0.06
12 27.60 23.31* 13.86 23.25 10.16 1.82 0.00
13 32.77 8.81 12.21 17.67 27.25* 1.17 0.12
14 12.92 28.77 38.29* 13.56 4.05 2.35 0.06
15 14.21 12.68 43.75* 13.56 14.56 1.23 0.00
16 4.76 8.51 21.79* 6.69 55.96 2.17 0.12
17 5.70 19.67 25.78 26.37* 19.79 2.70 0.00
18 43.51* 5.23 19.26 20.79 7.22 3.82 0.18
19 22.08 39.34* 16.09 9.57 7.22 5.64 0.06
20 9.98 20.61 25.31 29.89* 9.10 5.05 0.06
21 11.33 19.61 20.32 27.13* 15.80 5.75 0.06
22 10.10 16.91* 12.57 11.98 41.69 6.58 0.18
23 40.58 6.81 9.45 23.02* 13.56 6.34 0.23
24 15.56 20.73 25.07* 15.74 12.74 10.04 0.12
25 16.68 26.72 14.33 12.98* 19.32 9.98 0.00
(*) Correct Response
(?) Response the computer was unable to read due to incomplete
erasures or two answers marked for the same problem