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Missing Title
American Mathematics Competitions
2009 AMC 10 A Results for Illinois
GRAND STATISTICS
TOTAL NUMBER of official students taking exam: 4081
Number of unofficial participants: 10
Average score of participants: 66.1
Average score for female students is: 61.4 ( 1582 Students)
Average score for male students is: 70.3 ( 1875 Students)
Average score for unspecified gender is 65.6 ( 624 Students)
Average score for grade 10 is: 67.7 ( 1869 Students)
Average score for grade 9 is: 64.8 ( 1815 Students)
Average score for grade 8 and below is: 73.8 ( 111 Students)
Average score with unknown grade: 61.4 ( 286 Students)
AIME qualifying score = 120.0 or better
Number of AIME qualifers 41
Number of schools returning results 85
Average school winning score 105.62
American Mathematics Competitions
2009 AMC 12 A Results for Illinois
GRAND STATISTICS
TOTAL NUMBER of official students taking exam: 4755
Number of unofficial participants: 9
Average score of participants: 67.4
Average score for female students is: 62.8 ( 1839 Students)
Average score for male students is: 70.7 ( 2235 Students)
Average score for unspecified gender is 68.8 ( 681 Students)
Average score for grade 13 is: 83.3 ( 2 Students)
Average score for grade 12 is: 69.2 ( 1839 Students)
Average score for grade 11 is: 65.7 ( 2266 Students)
Average score for grade 10 is: 69.3 ( 348 Students)
Average score for grade 9 is: 64.8 ( 57 Students)
Average score with unknown grade: 67.4 ( 243 Students)
AIME qualifying score = 97.5 or better
Number of AIME qualifers 197
Number of schools returning results 90
Average school winning score 97.87
Average school team score 274.13
American Mathematics Competitions
2009 AMC 10 B Results for Illinois
GRAND STATISTICS
TOTAL NUMBER of official students taking exam: 1017
Number of unofficial participants: 0
Average score of participants: 66.7
Average score for female students is: 62.9 ( 399 Students)
Average score for male students is: 70.2 ( 453 Students)
Average score for unspecified gender is 66.2 ( 165 Students)
Average score for grade 10 is: 68.0 ( 444 Students)
Average score for grade 9 is: 65.2 ( 497 Students)
Average score for grade 8 and below is: 76.2 ( 17 Students)
Average score with unknown grade: 66.1 ( 59 Students)
AIME qualifying score = 120.0 or better
Number of AIME qualifers 16
Number of schools returning results 29
Average school winning score 107.48
American Mathematics Competitions
2009 AMC 12 B Results for Illinois
GRAND STATISTICS
TOTAL NUMBER of official students taking exam: 1103
Number of unofficial participants: 0
Average score of participants: 68.6
Average score for female students is: 63.1 ( 403 Students)
Average score for male students is: 72.1 ( 528 Students)
Average score for unspecified gender is 70.7 ( 172 Students)
Average score for grade 13 is: 60.0 ( 1 Student)
Average score for grade 12 is: 70.7 ( 430 Students)
Average score for grade 11 is: 65.4 ( 540 Students)
Average score for grade 10 is: 74.3 ( 91 Students)
Average score for grade 9 is: 99.4 ( 14 Students)
Average score with unknown grade: 64.2 ( 27 Students)
AIME qualifying score = 100.0 or better
Number of AIME qualifers 66
Number of schools returning results 33
Average school winning score 104.18
Average school team score 286.68
2009 State AMC 12 TEAM Score Distribution
-----------------------------------------------
score A B Rank
-----------------------------------------------
409.5 1 1
406.5 1 2
369.0 1 3
367.5 1 4
364.5 1 5
358.5 1 6
354.0 1 7
349.5 1 8
346.5 1 9
345.0 1 10
343.5 1 11
340.5 2 12
339.0 1 14
334.5 1 15
319.5 1 16
318.0 1 17
313.5 3 18
312.0 1 21
310.5 1 22
309.0 3 23
307.5 2 2 26
306.0 1 30
304.5 1 31
303.0 1 32
301.5 1 1 33
300.0 1 2 35
298.5 3 38
297.0 5 2 41
295.5 1 48
294.0 2 1 49
292.5 1 52
291.0 1 53
289.5 2 54
288.0 1 56
286.5 1 1 57
285.0 3 1 59
283.5 1 2 63
282.0 1 66
280.5 1 67
279.0 1 68
277.5 1 69
276.0 2 70
274.5 1 72
273.0 2 73
271.5 1 75
267.0 2 1 76
265.5 2 79
262.5 4 81
256.5 2 1 85
255.0 1 88
252.0 1 89
250.5 1 90
249.0 3 91
247.5 1 1 94
244.5 1 96
243.0 1 97
241.5 1 98
240.0 1 99
237.0 1 100
235.5 1 101
234.0 1 102
229.5 1 103
226.5 1 1 104
223.5 1 106
220.5 1 107
214.5 1 108
213.0 4 109
210.0 1 113
208.5 1 114
207.0 1 115
204.0 1 116
201.0 1 117
196.5 1 118
195.0 1 119
187.5 1 120
177.0 1 121
175.5 1 122
79.5 1 123
2009 AMC Contest Score Distributions
-----------------------------------------------
score 12 A 12 B 10 A 10 B
-----------------------------------------------
150.0 1
144.0 2 1 1
139.5 1 2
138.0 1 2
135.0 1 1
133.5 3 1
132.0 1 4
130.5 1 1 3
129.0 2 1
127.5 1 1 1
126.0 1 4 5
124.5 1 1 2 1
123.0 1 3 1
121.5 4 2 4 1
120.0 2 11 4
118.5 2 3
117.0 1 2 8 1
115.5 3 1 4 1
114.0 7 8 7 3
112.5 12 4 4 2
111.0 4 2 8 4
109.5 8 1 11 1
108.0 12 3 18 3
106.5 10 3 14 7
105.0 14 4 21 5
103.5 14 6 18 2
102.0 13 8 25 5
100.5 31 13 16 6
99.0 24 13 42 5
97.5 29 11 33 5
96.0 41 8 34 10
94.5 59 26 32 9
93.0 34 16 42 8
91.5 41 10 34 8
90.0 70 17 66 14
88.5 66 27 59 11
87.0 66 16 48 16
85.5 73 14 68 17
84.0 93 17 78 20
82.5 118 27 76 17
81.0 112 23 79 19
79.5 110 26 78 20
78.0 151 24 105 32
76.5 156 23 96 24
75.0 148 28 123 26
73.5 147 27 100 20
72.0 181 42 139 34
70.5 177 28 113 25
69.0 210 27 116 26
67.5 169 31 113 35
66.0 192 36 149 41
64.5 179 40 116 35
63.0 190 30 122 41
61.5 154 34 138 35
60.0 195 39 127 28
58.5 142 29 99 30
57.0 140 23 117 34
55.5 111 37 133 37
54.0 168 42 141 44
52.5 94 33 100 27
51.0 86 35 98 27
49.5 77 25 79 17
48.0 107 21 117 22
46.5 59 18 81 14
45.0 58 22 90 22
43.5 56 17 64 19
42.0 74 16 89 19
40.5 36 9 61 11
39.0 31 14 51 12
37.5 39 6 40 9
36.0 36 5 61 8
34.5 20 4 31 4
33.0 11 4 23 6
31.5 18 3 20 2
30.0 18 6 23 8
28.5 4 1 9 1
27.0 3 1 7 2
25.5 12 6 1
24.0 14 2 9 1
22.5 1
21.0 1
19.5 1 1 1 1
18.0 6 1 5 1
16.5 1 1 1
15.0 1
13.5 1
12.0 2
6.0 1
American Mathematics Competitions
2009 AMC 10 A Results for Illinois
SCORE DISTRIBUTION
score ----gender----------- -----------grade-----------------
male female ?
American Mathematics Competitions
2009 AMC 10 A Results for Illinois
Analysis
Table of Item Difficulty for the 2009
American Mathematics Competitions 10/12
Tabulation of responses for all Participants
Percent of Responses
ITEM A B C D E OMITS ?
____ _____ _____ _____ _____ _____ _____ _____
1 0.15 0.20 0.59 8.43 90.25* 0.39 0.00
2 93.33* 1.40 0.88 0.74 1.40 2.23 0.02
3 1.96 10.07 71.28* 5.59 3.55 7.55 0.00
4 27.62* 7.11 5.17 8.43 15.34 36.31 0.02
5 10.90 5.59 5.76 3.43 46.43* 27.89 0.00
6 60.87* 2.96 7.91 3.65 0.96 23.65 0.00
7 6.74 3.77 28.35* 4.09 32.93 24.09 0.02
8 8.23 78.95* 3.68 1.57 1.42 6.13 0.02
9 8.21 18.40* 7.60 4.24 1.08 60.48 0.00
10 4.12 27.10* 4.53 12.06 2.01 50.16 0.02
11 2.25 2.89 3.60 58.17* 1.62 31.46 0.00
12 3.14 7.01 26.27* 8.01 5.98 49.55 0.05
13 22.86 4.44 3.75 11.88 13.67* 43.40 0.00
14 38.47* 1.62 5.12 4.12 11.35 39.33 0.00
15 2.65 3.82 4.07 7.55 45.82* 36.05 0.05
16 21.59 5.64 3.99 9.88* 6.10 52.78 0.02
17 3.99 10.29 7.25* 2.47 3.95 72.04 0.00
18 18.08 11.57 6.98 15.78* 6.71 40.87 0.00
19 4.46 9.90* 7.72 7.82 3.06 66.99 0.05
20 8.87 8.80 9.07 34.65* 1.84 36.78 0.00
21 2.70 2.87 11.22* 3.82 2.60 76.79 0.00
22 5.83 6.22 28.64 6.79* 3.85 48.66 0.00
23 3.09 2.30 4.56 4.07 8.26* 77.70 0.02
24 8.43 12.96 7.13* 4.53 6.42 60.52 0.00
25 5.64 4.31* 6.13 3.72 4.09 76.11 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
2009 AMC 12 A Results for Illinois
SCORE DISTRIBUTION
score ----gender----------- -----------grade-----------------
male female ?
American Mathematics Competitions
2009 AMC 12 A Results for Illinois
Analysis
Table of Item Difficulty for the 2009
American Mathematics Competitions 10/12
Tabulation of responses for all Participants
Percent of Responses
ITEM A B C D E OMITS ?
____ _____ _____ _____ _____ _____ _____ _____
1 89.25* 5.83 0.90 0.34 1.43 2.25 0.00
2 0.97 3.55 89.27* 2.61 1.47 2.08 0.04
3 4.54 82.40* 3.30 4.50 1.91 3.34 0.00
4 95.48* 0.74 0.59 0.55 1.39 1.26 0.00
5 1.03 1.49 2.04 83.05* 1.01 11.36 0.02
6 23.13 3.89 3.30 13.48 35.25* 20.93 0.02
7 2.27 31.27* 5.70 2.99 2.99 54.76 0.02
8 59.07* 1.98 5.74 3.93 8.35 20.88 0.04
9 2.36 4.33 4.92 37.35* 5.49 45.55 0.00
10 3.39 6.54 37.56* 9.06 6.52 36.87 0.06
11 2.06 2.65 3.62 6.08 67.68* 17.77 0.15
12 13.33 26.20* 6.14 6.81 3.22 44.25 0.04
13 10.37 11.15 14.03 20.19* 5.62 38.61 0.04
14 3.60 6.35* 7.91 11.42 5.59 65.11 0.02
15 7.91 6.16 9.36 25.70* 6.52 44.33 0.02
16 14.66 6.77 8.03 6.65* 3.24 60.61 0.04
17 4.37 4.14 9.04* 5.22 8.66 68.54 0.02
18 13.10 6.10* 6.56 2.94 4.06 67.19 0.04
19 8.35 7.82 7.76* 7.19 8.96 59.89 0.02
20 3.28 3.43 7.26 4.73 8.52* 72.77 0.02
21 6.65 4.75 6.46* 3.26 4.00 74.87 0.02
22 3.18 4.96 4.52 4.79 2.59* 79.94 0.02
23 1.79 3.39 4.35 3.26* 1.05 86.12 0.04
24 7.57 6.65 4.14 3.83 1.41* 76.36 0.04
25 3.01* 5.34 5.19 6.16 7.97 72.28 0.04
(*) Correct Response
(?) Response the computer was unable to read due to incomplete
erasures or two answers marked in the same column
American Mathematics Competitions
2009 AMC 10 B Results for Illinois
SCORE DISTRIBUTION
score ----gender----------- -----------grade-----------------
male female ?
American Mathematics Competitions
2009 AMC 10 B Results for Illinois
Analysis
Table of Item Difficulty for the 2009
American Mathematics Competitions 10/12
Tabulation of responses for all Participants
Percent of Responses
ITEM A B C D E OMITS ?
____ _____ _____ _____ _____ _____ _____ _____
1 0.39 73.94* 8.16 13.37 2.85 1.28 0.00
2 2.06 1.18 88.89* 0.79 0.59 6.49 0.00
3 0.88 2.95 71.88* 16.32 0.79 7.18 0.00
4 2.06 3.05 71.48* 11.60 1.87 9.93 0.00
5 8.26 2.06 22.71 49.36* 2.95 14.65 0.00
6 0.69 0.69 5.60 71.68* 3.34 17.99 0.00
7 13.18 17.31 49.95* 8.06 5.51 6.00 0.00
8 4.03 29.20* 7.18 35.40 3.54 20.65 0.00
9 34.02* 4.03 3.74 9.05 2.95 46.21 0.00
10 6.39 2.26 3.64 2.75 45.72* 39.23 0.00
11 54.47* 6.98 3.74 3.44 2.16 29.20 0.00
12 21.14* 9.93 8.36 13.37 10.23 36.97 0.00
13 4.52 10.62 34.32* 7.77 10.91 31.86 0.00
14 4.82 24.98 18.19 15.44* 6.98 29.60 0.00
15 8.36 6.39 3.24 6.88 45.72* 29.40 0.00
16 3.64 10.91* 3.74 2.85 5.90 72.96 0.00
17 14.95 12.98 16.22* 2.95 1.28 51.62 0.00
18 4.42 7.08 5.41 10.72* 2.75 69.62 0.00
19 19.76* 20.16 10.13 9.83 2.75 37.36 0.00
20 5.01 10.91* 8.55 1.38 3.54 70.60 0.00
21 6.39 13.77 4.72 8.06* 3.05 64.01 0.00
22 1.67 3.54* 4.82 4.72 1.97 83.28 0.00
23 5.41 7.28 9.73* 6.59 5.60 65.39 0.00
24 10.82* 4.72 4.62 2.75 4.13 72.96 0.00
25 16.52 12.39* 9.83 5.21 6.59 49.46 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
2009 AMC 12 B Results for Illinois
SCORE DISTRIBUTION
score ----gender----------- -----------grade-----------------
male female ?
American Mathematics Competitions
2009 AMC 12 B Results for Illinois
Analysis
Table of Item Difficulty for the 2009
American Mathematics Competitions 10/12
Tabulation of responses for all Participants
Percent of Responses
ITEM A B C D E OMITS ?
____ _____ _____ _____ _____ _____ _____ _____
1 0.82 79.69* 5.44 10.52 2.63 0.91 0.00
2 0.54 1.90 77.43* 16.50 0.91 2.72 0.00
3 7.62 2.18 17.23 66.09* 1.27 5.62 0.00
4 1.27 1.99 81.14* 10.43 1.54 3.63 0.00
5 0.82 0.82 4.53 78.42* 3.99 11.42 0.00
6 8.07 10.70 64.37* 8.25 4.90 3.72 0.00
7 5.08 47.78* 7.16 25.93 3.17 10.88 0.00
8 3.63 4.99 3.08 4.53 69.90* 13.78 0.09
9 53.40* 5.26 2.63 4.53 1.18 33.00 0.00
10 37.35* 21.67 9.70 7.25 2.63 21.40 0.00
11 3.81 26.47 19.22 19.76* 7.98 22.76 0.00
12 4.17 3.45 6.17 3.45 33.73* 49.05 0.00
13 3.99 4.71 4.90 22.30* 7.16 56.94 0.00
14 10.43 10.88 33.54* 1.81 1.90 41.43 0.00
15 1.72 50.86* 9.52 6.44 5.71 25.75 0.00
16 4.17 5.53* 2.09 2.45 1.72 84.04 0.00
17 19.95 19.85* 7.80 4.71 4.62 43.06 0.00
18 4.71 7.62 13.60* 5.53 4.44 64.10 0.00
19 0.73 3.81 3.90 1.09 3.72* 86.76 0.00
20 2.63 3.99 3.72* 2.09 3.90 83.68 0.00
21 4.90* 5.17 5.80 10.70 27.02 46.42 0.00
22 1.81 4.99 3.17* 3.81 1.09 85.13 0.00
23 1.99 3.08 3.45 4.35* 1.90 85.22 0.00
24 9.34 7.07* 3.35 3.63 0.91 75.70 0.00
25 8.52 3.90 3.90 4.90 3.45* 75.34 0.00
(*) Correct Response
(?) Response the computer was unable to read due to incomplete
erasures or two answers marked in the same column
