2009 AMC8 Report for all schools in Nebraska
Number of schools returning results 64
Average of school highest score 14.34
Average school team score 39.56
# of State Student Participants 3725
Overall State Average Score 8.35
Average Score by Grade level
Grade # of Students Average
5th 6 6.67
6th 260 7.71
7th 1474 7.88
8th 1911 8.80
Number of Female Students 1769
Average Score of Female Students 8.07
Average Female Scores by Grade
Grade # of Students Average
5th 3 7.00
6th 127 7.38
7th 697 7.73
8th 936 8.40
Number of Male Participants 1855
Average Score of Male Participants 8.62
Average score for Males by Grade
Grade # of Students Average
5th 2 6.00
6th 130 8.04
7th 757 7.99
8th 946 9.18
2009 American Mathematics Contest 8
Number of Students Achieving Indicated Score
SCORE MALE FEMALE TOTAL*
25
24
23
22 3 1 4
21
20 2 2
19 2 1 3
18 1 7 8
17 15 5 20
16 21 10 31
15 31 19 52
14 59 28 90
13 63 54 122
12 111 95 212
11 160 126 291
10 200 163 376
9 234 213 458
8 249 249 512
7 241 244 498
6 203 210 430
5 125 168 300
4 72 89 165
3 41 50 92
2 15 31 46
1 5 3 8
0 (@) 1 1
0 ($) 3 1 4
(@) These students attempted some of the problems
($) These students attempted none of the problems
(*) Total includes students who failed to mark their gender
2009 American Mathematics Contest 8
Number of Students by Grade
Achieving indicated Score
SCORE 5th Grade 6th Grade 7th Grade 8th Grade
25
24
23
22 4
21
20 2
19 3
18 4 4
17 4 16
16 1 5 25
15 3 13 33
14 3 27 59
13 9 35 78
12 8 61 135
11 16 109 162
10 24 140 202
9 32 180 237
8 1 34 210 257
7 2 39 204 245
6 3 34 189 191
5 29 129 137
4 14 83 66
3 8 46 37
2 5 28 13
1 5 3
0(@) 1 2 2
0($)
(@) These students attempted some of the problems
($) These students attempted none of the problems
Note: Some students failed to indicate a grade
2009 American Mathematics Contest 8
Number of Schools with 3+ students
Achieving team Scores
SCORE school count
66 1
56 2
51 1
48 1
47 3
46 5
45 5
44 2
43 3
42 1
41 3
40 2
39 5
38 1
37 7
36 2
35 3
34 4
33 2
32 2
31 3
30 1
29 2
28 1
27 1
26 1
Table of Item Difficulty for the 2009
American Mathematics Contest 8
Tabulation of responses by 3725 Students
Percent of Responses
ITEM A B C D E OMITS ?
____ _____ _____ _____ _____ _____ _____ _____
1 0.16 0.30 4.40 3.52 91.44* 0.19 0.00
2 5.02 6.39 5.83 77.58* 4.97 0.21 0.00
3 20.13 5.15 69.83* 2.12 2.55 0.16 0.05
4 14.63 55.89* 3.22 14.47 11.38 0.38 0.03
5 8.99 22.04 24.35 39.84* 3.81 0.97 0.00
6 54.77* 13.37 9.74 7.60 13.99 0.51 0.03
7 2.95 11.70 23.28* 26.50 34.28 1.18 0.11
8 36.00 10.36* 45.88 2.68 4.56 0.48 0.03
9 19.33 30.98* 20.48 19.33 8.40 1.48 0.00
10 5.83 27.62 14.74 38.44* 12.56 0.72 0.08
11 6.31 16.19 26.34 27.79* 21.48 1.88 0.03
12 28.32 31.54 5.21 24.46* 9.64* 0.75 0.08
13 7.36 68.64* 6.77 12.38 3.81 0.97 0.08
14 7.28 5.83* 74.63 6.12 4.70 1.40 0.05
15 19.06 14.98 16.35 25.34* 21.69 2.52 0.05
16 40.48 18.52 16.83 10.77* 10.87 2.47 0.05
17 16.81 21.15* 23.84 21.05 13.50 3.60 0.05
18 26.36 12.59 32.72* 13.80 11.38 2.98 0.16
19 15.52 16.81 25.02 15.22* 22.79 4.46 0.19
20 17.21 32.94 12.21 19.84* 13.07 4.51 0.21
21 16.30 41.32 14.87 14.09* 7.28 5.96 0.19
22 14.17 14.12 20.13 18.85* 26.68 5.91 0.13
23 12.62 23.97* 17.72 24.78 13.56 7.06 0.30
24 20.99 20.11 22.04 18.20 10.36* 8.16 0.13
25 13.53 19.95 17.96 15.54 23.89* 8.94 0.19
(*) Correct Response
(?) Response the computer was unable to read due to incomplete
erasures or two answers marked for the same problem