American Mathematics Competitions
2011 AMC 10 A Results for Idaho
GRAND STATISTICS
TOTAL NUMBER of official students taking exam: 275
Number of unofficial participants: 0
Average score of participants: 53.4
Average score for female students is: 50.2 ( 96 Students)
Average score for male students is: 58.4 ( 131 Students)
Average score for unspecified gender is 46.2 ( 48 Students)
Average score for grade 10 is: 56.3 ( 177 Students)
Average score for grade 9 is: 49.1 ( 60 Students)
Average score with unknown grade: 46.8 ( 38 Students)
AIME qualifying score = 117.0 or better
Number of AIME qualifers 3
Number of schools returning results 10
Average school winning score 85.05
American Mathematics Competitions
2011 AMC 12 A Results for Idaho
GRAND STATISTICS
TOTAL NUMBER of official students taking exam: 333
Number of unofficial participants: 0
Average score of participants: 60.3
Average score for female students is: 56.8 ( 103 Students)
Average score for male students is: 62.2 ( 161 Students)
Average score for unspecified gender is 61.0 ( 69 Students)
Average score for grade 12 is: 59.9 ( 105 Students)
Average score for grade 11 is: 60.1 ( 151 Students)
Average score for grade 10 is: 63.2 ( 15 Students)
Average score for grade 9 is: 51.8 ( 4 Students)
Average score for grade 8 and below is: 85.5 ( 1 Student)
Average score with unknown grade: 60.7 ( 57 Students)
AIME qualifying score = 93.0 or better
Number of AIME qualifers 4
Number of schools returning results 12
Average school winning score 82.75
Average school team score 234.13
American Mathematics Competitions
2011 AMC 10 B Results for Idaho
GRAND STATISTICS
TOTAL NUMBER of official students taking exam: 54
Number of unofficial participants: 0
Average score of participants: 68.5
Average score for female students is: 54.5 ( 15 Students)
Average score for male students is: 74.8 ( 27 Students)
Average score for unspecified gender is 71.8 ( 12 Students)
Average score for grade 10 is: 68.1 ( 32 Students)
Average score for grade 9 is: 69.9 ( 13 Students)
Average score for grade 8 and below is: 78.0 ( 3 Students)
Average score with unknown grade: 63.0 ( 6 Students)
AIME qualifying score = 117.0 or better
Number of AIME qualifers 0
Number of schools returning results 3
Average school winning score 105.00
American Mathematics Competitions
2011 AMC 12 B Results for Idaho
GRAND STATISTICS
TOTAL NUMBER of official students taking exam: 8
Number of unofficial participants: 0
Average score of participants: 63.8
Average score for female students is: 55.5 ( 2 Students)
Average score for male students is: 67.2 ( 5 Students)
Average score for unspecified gender is 63.0 ( 1 Student)
Average score for grade 12 is: 94.5 ( 1 Student)
Average score for grade 11 is: 57.5 ( 3 Students)
Average score for grade 10 is: 60.8 ( 4 Students)
AIME qualifying score = 97.5 or better
Number of AIME qualifers 0
Number of schools returning results 2
Average school winning score 87.00
Average school team score 210.75
2011 State AMC 12 TEAM Score Distribution
-----------------------------------------------
score A B Rank
-----------------------------------------------
282.0 1 1
261.0 1 2
250.5 1 3
249.0 2 4
247.5 1 6
243.0 1 7
223.5 1 8
220.5 2 9
204.0 1 11
199.5 1 12
198.0 1 13
183.0 1 14
2011 AMC Contest Score Distributions
-----------------------------------------------
score 12 A 12 B 10 A 10 B
-----------------------------------------------
124.5 1
121.5 1
117.0 1
114.0 1
112.5 1
108.0 2
106.5 1
105.0 1
102.0 2
96.0 1 1
94.5 1 1 2 2
93.0 2 2 2
91.5 1
90.0 1 1
88.5 1 1
87.0 1 1 1
85.5 7
84.0 1 2
82.5 2 1
81.0 4 6
79.5 2 1 1
78.0 4 2
76.5 8 3 2
75.0 8 3 1
73.5 9 1 2
72.0 8 8 4
70.5 13 2 1
69.0 10 10 2
67.5 14 3 3
66.0 17 1 3
64.5 17 4 2
63.0 18 1 5
61.5 19 9 3
60.0 17 11
58.5 7 9 1
57.0 12 8 1
55.5 12 7 3
54.0 17 13 1
52.5 11 8 3
51.0 14 7 1
49.5 6 13 2
48.0 11 9 1
46.5 16 10 2
45.0 11 2 17 2
43.5 6 1 12
42.0 7 12
40.5 10 10 2
39.0 1 13
37.5 1 6
36.0 3 7 1
34.5 4 1
33.0 1 7
31.5 5
30.0 6
28.5 1 2
27.0 2
25.5 1
24.0 1
13.5 1
12.0 1
American Mathematics Competitions
2011 AMC 10 A Results for Idaho
SCORE DISTRIBUTION
score ----gender----------- -----------grade-----------------
male female ?
American Mathematics Competitions
2011 AMC 10 A Results for Idaho
Analysis
Table of Item Difficulty for the 2011
American Mathematics Competitions 10/12
Tabulation of responses for all Participants
Percent of Responses
ITEM A B C D E OMITS ?
____ _____ _____ _____ _____ _____ _____ _____
1 0.00 0.36 18.91 74.18* 2.18 4.36 0.00
2 0.36 0.00 1.09 14.18 81.82* 2.55 0.00
3 1.82 2.55 1.82 28.73* 2.55 62.55 0.00
4 34.55* 2.55 4.00 3.64 2.18 53.09 0.00
5 6.18 24.00 25.82* 2.91 2.55 38.55 0.00
6 6.91 5.09 13.82* 15.64 2.91 55.64 0.00
7 6.18 28.73* 33.09 1.82 1.09 28.73 0.36
8 4.00 24.36 42.55* 1.45 2.18 25.45 0.00
9 12.73* 1.82 6.91 4.36 4.00 70.18 0.00
10 4.00 11.64* 5.09 4.73 5.82 68.73 0.00
11 5.09 7.27* 2.55 3.27 1.82 80.00 0.00
12 41.82* 1.09 4.00 7.27 3.27 42.55 0.00
13 15.64* 6.18 5.45 4.73 1.82 66.18 0.00
14 8.73 9.45* 11.27 2.55 0.36 67.64 0.00
15 3.27 4.00 12.36* 3.27 2.18 74.91 0.00
16 17.09 2.55* 0.73 2.91 12.36 64.36 0.00
17 0.73 0.73 38.55* 1.09 1.09 57.82 0.00
18 3.27 5.09 4.36* 5.82 4.00 77.45 0.00
19 2.55 5.09 2.91 2.18 4.73* 82.55 0.00
20 3.64 4.00 4.36 3.64* 11.27 73.09 0.00
21 5.45 1.09 3.27 2.18* 5.82 82.18 0.00
22 2.91 4.00 1.09* 3.27 4.00 84.73 0.00
23 1.45 2.18 7.64* 2.55 9.09 77.09 0.00
24 0.73 1.45 2.18 0.36* 1.45 93.82 0.00
25 1.09 1.82 2.91* 1.45 0.36 92.36 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
2011 AMC 12 A Results for Idaho
SCORE DISTRIBUTION
score ----gender----------- -----------grade-----------------
male female ?
American Mathematics Competitions
2011 AMC 12 A Results for Idaho
Analysis
Table of Item Difficulty for the 2011
American Mathematics Competitions 10/12
Tabulation of responses for all Participants
Percent of Responses
ITEM A B C D E OMITS ?
____ _____ _____ _____ _____ _____ _____ _____
1 0.30 1.20 9.31 85.89* 1.20 2.10 0.00
2 0.00 0.60 1.20 0.30 97.30* 0.60 0.00
3 0.30 0.00 1.20 12.01 84.68* 1.80 0.00
4 3.00 18.92 51.95* 3.60 0.90 21.62 0.00
5 2.70 18.02 60.96* 0.90 0.60 16.82 0.00
6 72.07* 0.00 0.90 4.20 0.90 21.92 0.00
7 2.70 20.72* 3.90 12.31 9.31 51.05 0.00
8 0.90 1.50 64.56* 0.90 0.30 31.83 0.00
9 4.80 9.91* 7.81 7.21 26.13 44.14 0.00
10 13.21 29.73* 11.41 1.80 1.80 42.04 0.00
11 1.80 2.40 10.51* 18.92 7.21 59.16 0.00
12 3.30 6.61 3.90 6.91* 19.52 59.76 0.00
13 36.04 4.20* 3.60 7.51 0.90 47.75 0.00
14 1.50 2.70 3.30 3.30 2.40* 86.79 0.00
15 3.90* 2.10 12.01 2.70 0.30 78.98 0.00
16 2.40 5.41 2.70* 2.70 7.51 79.28 0.00
17 2.40 3.00 1.50 4.80* 1.80 86.49 0.00
18 3.00 4.50 7.51 17.42* 0.60 66.97 0.00
19 0.60 1.80 5.41* 1.50 0.30 90.39 0.00
20 4.80 7.81 2.40* 1.80 0.60 82.58 0.00
21 1.20* 1.80 0.60 1.20 0.90 94.29 0.00
22 0.90 1.20 1.80* 1.20 1.20 93.69 0.00
23 0.90 1.50 2.10* 1.80 2.40 91.29 0.00
24 5.71 2.40 6.91* 1.20 4.80 78.98 0.00
25 3.00 4.80 1.80 1.50* 7.51 81.38 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
2011 AMC 10 B Results for Idaho
SCORE DISTRIBUTION
score ----gender----------- -----------grade-----------------
male female ?
American Mathematics Competitions
2011 AMC 10 B Results for Idaho
Analysis
Table of Item Difficulty for the 2011
American Mathematics Competitions 10/12
Tabulation of responses for all Participants
Percent of Responses
ITEM A B C D E OMITS ?
____ _____ _____ _____ _____ _____ _____ _____
1 0.00 0.00 96.30* 1.85 0.00 1.85 0.00
2 1.85 0.00 3.70 1.85 92.59* 0.00 0.00
3 90.74* 3.70 5.56 0.00 0.00 0.00 0.00
4 1.85 7.41 72.22* 18.52 0.00 0.00 0.00
5 3.70 7.41 0.00 1.85 55.56* 31.48 0.00
6 77.78* 0.00 3.70 1.85 3.70 12.96 0.00
7 44.44 46.30* 1.85 0.00 1.85 5.56 0.00
8 24.07 74.07* 0.00 0.00 1.85 0.00 0.00
9 20.37 0.00 5.56 35.19* 0.00 38.89 0.00
10 11.11 51.85* 18.52 5.56 1.85 11.11 0.00
11 7.41 3.70 59.26 22.22* 0.00 7.41 0.00
12 7.41* 11.11 9.26 1.85 0.00 70.37 0.00
13 20.37 12.96 5.56 20.37* 9.26 31.48 0.00
14 1.85 11.11 22.22* 1.85 12.96 50.00 0.00
15 5.56 3.70 1.85 14.81 57.41* 16.67 0.00
16 16.67* 16.67 12.96 11.11 1.85 40.74 0.00
17 3.70 3.70 20.37* 9.26 25.93 37.04 0.00
18 0.00 7.41 22.22 25.93 12.96* 31.48 0.00
19 16.67* 16.67 0.00 11.11 11.11 44.44 0.00
20 3.70 29.63 9.26* 1.85 0.00 55.56 0.00
21 5.56 7.41* 3.70 1.85 1.85 79.63 0.00
22 7.41* 3.70 3.70 1.85 1.85 81.48 0.00
23 33.33 3.70 3.70 7.41* 1.85 50.00 0.00
24 3.70 0.00* 9.26 5.56 1.85 79.63 0.00
25 0.00 0.00 7.41 5.56* 1.85 85.19 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
2011 AMC 12 B Results for Idaho
SCORE DISTRIBUTION
score ----gender----------- -----------grade-----------------
male female ?
American Mathematics Competitions
2011 AMC 12 B Results for Idaho
Analysis
Table of Item Difficulty for the 2011
American Mathematics Competitions 10/12
Tabulation of responses for all Participants
Percent of Responses
ITEM A B C D E OMITS ?
____ _____ _____ _____ _____ _____ _____ _____
1 12.50 0.00 87.50* 0.00 0.00 0.00 0.00
2 0.00 0.00 0.00 0.00 100.00* 0.00 0.00
3 12.50 12.50 62.50* 12.50 0.00 0.00 0.00
4 12.50 0.00 0.00 12.50 50.00* 25.00 0.00
5 50.00* 0.00 0.00 12.50 37.50 0.00 0.00
6 0.00 0.00 75.00* 12.50 0.00 12.50 0.00
7 0.00 75.00* 0.00 12.50 0.00 12.50 0.00
8 50.00* 0.00 0.00 0.00 0.00 50.00 0.00
9 0.00 25.00 0.00 50.00* 0.00 25.00 0.00
10 0.00 0.00 25.00 12.50 25.00* 37.50 0.00
11 12.50 12.50* 12.50 25.00 12.50 25.00 0.00
12 50.00* 25.00 0.00 0.00 0.00 25.00 0.00
13 0.00 0.00* 0.00 12.50 0.00 87.50 0.00
14 0.00 0.00 12.50 0.00* 12.50 75.00 0.00
15 0.00 37.50 0.00 12.50* 0.00 50.00 0.00
16 0.00 12.50 25.00* 12.50 0.00 50.00 0.00
17 0.00 12.50* 12.50 0.00 12.50 62.50 0.00
18 0.00* 12.50 0.00 0.00 0.00 87.50 0.00
19 12.50 0.00* 0.00 25.00 25.00 37.50 0.00
20 0.00 0.00 12.50* 0.00 12.50 75.00 0.00
21 12.50 12.50 0.00 0.00* 0.00 75.00 0.00
22 0.00 0.00 0.00 12.50* 0.00 87.50 0.00
23 0.00 0.00 12.50* 12.50 0.00 75.00 0.00
24 0.00 0.00* 0.00 12.50 0.00 87.50 0.00
25 0.00 12.50 0.00 0.00* 0.00 87.50 0.00
(*) Correct Response
(?) Response the computer was unable to read due to incomplete
erasures or two answers marked in the same column
