2008 AMC8 Report for all schools in Arizona
Number of schools returning results 30
Average of school highest score 19.23
Average school team score 52.33
# of State Student Participants 1989
Overall State Average Score 9.89
Average Score by Grade level
Grade # of Students Average
5th 57 9.44
6th 374 9.01
7th 662 9.97
8th 815 10.32
Number of Female Students 961
Average Score of Female Students 9.41
Average Female Scores by Grade
Grade # of Students Average
5th 21 8.76
6th 199 8.54
7th 337 9.39
8th 396 9.92
Number of Male Participants 937
Average Score of Male Participants 10.42
Average score for Males by Grade
Grade # of Students Average
5th 36 9.83
6th 172 9.54
7th 319 10.60
8th 407 10.74
2008 American Mathematics Contest 8
Number of Students Achieving Indicated Score
SCORE MALE FEMALE TOTAL*
25 2 0 2
24 3 0 3
23 4 0 4
22 3 2 5
21 8 0 9
20 4 3 7
19 13 5 18
18 21 4 25
17 21 10 35
16 24 21 45
15 38 29 70
14 36 31 67
13 65 51 119
12 88 90 190
11 79 85 174
10 102 104 215
9 107 122 238
8 86 111 210
7 84 122 218
6 76 65 154
5 43 60 104
4 17 25 43
3 8 10 18
2 2 7 9
1 1 2 3
0 (@) 1 0 1
0 ($) 1 2 3
(@) These students attempted some of the problems
($) These students attempted none of the problems
(*) Total includes students who failed to mark their gender
2008 American Mathematics Contest 8
Number of Students by Grade
Achieving indicated Score
SCORE 5th Grade 6th Grade 7th Grade 8th Grade
25 0 0 1 1
24 0 0 2 1
23 0 0 2 2
22 0 0 1 4
21 2 0 2 4
20 0 2 0 5
19 0 2 7 9
18 0 2 9 14
17 0 4 10 18
16 1 4 15 24
15 2 8 25 32
14 1 7 24 35
13 3 19 40 55
12 5 30 65 81
11 4 39 62 61
10 5 35 62 105
9 8 43 94 86
8 7 40 75 78
7 8 64 63 70
6 5 28 46 63
5 5 28 30 39
4 1 7 16 18
3 0 7 4 6
2 0 4 3 2
1 0 1 2 0
0(@) 0 0 2 2
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
2008 American Mathematics Contest 8
Number of Schools with 3+ students
Achieving team Scores
SCORE school count
71 1
68 1
65 1
63 1
62 3
61 1
59 1
58 2
56 1
55 1
52 1
51 3
50 1
49 2
48 1
47 1
45 1
44 1
42 1
40 1
39 2
37 1
36 1
Table of Item Difficulty for the 2008
American Mathematics Contest 8
Tabulation of responses by 1989 Students
Percent of Responses
ITEM A B C D E OMITS ?
____ _____ _____ _____ _____ _____ _____ _____
1 1.71 87.88* 6.64 3.57 0.05 0.15 0.00
2 54.10* 13.12 9.05 16.29 6.13 1.31 0.00
3 78.13* 6.18 2.21 2.87 10.06 0.35 0.20
4 6.74 17.45 56.21* 13.17 5.38 0.96 0.10
5 6.64 11.81 11.56 16.59 51.94* 1.31 0.15
6 34.49 10.66 3.37 49.27* 1.66 0.55 0.00
7 5.48 7.64 10.26 19.36 55.86* 1.36 0.05
8 8.14 3.62 9.20 76.07* 2.51 0.45 0.00
9 6.89 2.36 2.56 17.50* 70.09 0.50 0.10
10 45.20 8.14 12.17 26.40* 6.84 1.21 0.05
11 72.35* 11.71 7.24 2.82 5.03 0.85 0.00
12 10.66 23.23 27.25* 20.36* 17.14* 1.21 0.15
13 4.73 9.15 35.09* 10.46 38.46 2.06 0.05
14 20.11 23.08 20.31* 7.74 27.30 1.36 0.10
15 17.95 30.87* 23.78 15.54 7.54 4.22 0.10
16 17.14 22.27 15.38 32.28* 9.20 3.62 0.10
17 21.47 26.95 20.21 19.76* 6.28 5.23 0.10
18 23.53 16.99 17.30 13.68 22.98* 5.33 0.20
19 36.15 18.70* 10.76 21.67 7.49 5.08 0.15
20 17.60 20.86* 31.93 13.17 9.60 6.74 0.10
21 42.84 19.66 15.18* 11.41 3.62 7.09 0.20
22 22.57* 21.37 18.70 17.80 11.31 7.89 0.35
23 11.61 21.17 21.22* 25.34 11.31 9.00 0.35
24 25.79 20.66 21.67* 12.42 10.31 8.95 0.20
25 17.40* 18.25 18.95 14.48 21.87 8.90 0.15
(*) Correct Response
(?) Response the computer was unable to read due to incomplete
erasures or two answers marked for the same problem