American Mathematics Competitions
2008 AMC 10 A Results for New York
GRAND STATISTICS
TOTAL NUMBER of official students taking exam: 6473
Number of unofficial participants: 28
Average score of participants: 54.3
Average score for female students is: 49.5 ( 2469 Students)
Average score for male students is: 58.0 ( 2916 Students)
Average score for unspecified gender is 55.1 ( 1088 Students)
Average score for grade 10 is: 55.8 ( 3097 Students)
Average score for grade 9 is: 52.7 ( 2817 Students)
Average score for grade 8 and below is: 65.1 ( 174 Students)
Average score with unknown grade: 48.7 ( 385 Students)
AIME qualifying score = 117.0 or better
Number of AIME qualifers 43
Number of schools returning results 160
Average school winning score 87.98
American Mathematics Competitions
2008 AMC 12 A Results for New York
GRAND STATISTICS
TOTAL NUMBER of official students taking exam: 6361
Number of unofficial participants: 13
Average score of participants: 64.7
Average score for female students is: 60.2 ( 2454 Students)
Average score for male students is: 67.8 ( 3088 Students)
Average score for unspecified gender is 66.1 ( 819 Students)
Average score for grade 13 is: 67.5 ( 3 Students)
Average score for grade 12 is: 65.8 ( 2773 Students)
Average score for grade 11 is: 63.5 ( 3068 Students)
Average score for grade 10 is: 66.9 ( 273 Students)
Average score for grade 9 is: 65.1 ( 82 Students)
Average score for grade 8 and below is: 77.0 ( 9 Students)
Average score with unknown grade: 61.9 ( 153 Students)
AIME qualifying score = 97.5 or better
Number of AIME qualifers 341
Number of schools returning results 180
Average school winning score 97.48
Average school team score 265.98
American Mathematics Competitions
2008 AMC 10 B Results for New York
GRAND STATISTICS
TOTAL NUMBER of official students taking exam: 2082
Number of unofficial participants: 22
Average score of participants: 63.6
Average score for female students is: 58.9 ( 848 Students)
Average score for male students is: 67.1 ( 1029 Students)
Average score for unspecified gender is 65.3 ( 205 Students)
Average score for grade 10 is: 66.1 ( 951 Students)
Average score for grade 9 is: 61.5 ( 968 Students)
Average score for grade 8 and below is: 60.4 ( 103 Students)
Average score with unknown grade: 62.1 ( 60 Students)
AIME qualifying score = 120.0 or better
Number of AIME qualifers 23
Number of schools returning results 71
Average school winning score 94.99
American Mathematics Competitions
2008 AMC 12 B Results for New York
GRAND STATISTICS
TOTAL NUMBER of official students taking exam: 2324
Number of unofficial participants: 7
Average score of participants: 70.2
Average score for female students is: 65.1 ( 867 Students)
Average score for male students is: 73.7 ( 1211 Students)
Average score for unspecified gender is 71.2 ( 246 Students)
Average score for grade 13 is: 97.5 ( 1 Student)
Average score for grade 12 is: 73.4 ( 824 Students)
Average score for grade 11 is: 68.1 ( 1155 Students)
Average score for grade 10 is: 69.8 ( 201 Students)
Average score for grade 9 is: 70.3 ( 62 Students)
Average score for grade 8 and below is: 72.6 ( 22 Students)
Average score with unknown grade: 68.3 ( 59 Students)
AIME qualifying score = 97.5 or better
Number of AIME qualifers 160
Number of schools returning results 93
Average school winning score 95.26
Average school team score 259.45
2008 State AMC 12 TEAM Score Distribution
-----------------------------------------------
score A B Rank
-----------------------------------------------
408.0 1 1
393.0 1 2
390.0 1 3
381.0 1 4
375.0 1 1 5
367.5 1 7
366.0 2 8
364.5 1 10
360.0 1 11
352.5 1 12
351.0 2 13
348.0 1 15
346.5 2 2 16
343.5 1 20
342.0 1 21
340.5 1 22
337.5 1 23
333.0 1 24
327.0 1 25
325.5 1 1 26
324.0 1 28
322.5 3 29
318.0 1 32
316.5 3 33
315.0 1 36
313.5 1 1 37
312.0 3 39
310.5 2 1 42
309.0 1 45
307.5 2 46
306.0 1 48
304.5 2 49
303.0 1 3 51
301.5 4 1 55
300.0 2 60
298.5 1 1 62
294.0 3 1 64
292.5 1 3 68
291.0 4 72
289.5 2 1 76
288.0 2 3 79
286.5 2 2 84
285.0 3 2 88
283.5 2 93
282.0 5 1 95
280.5 3 101
279.0 2 104
277.5 1 106
276.0 1 2 107
274.5 3 2 110
273.0 2 1 115
271.5 3 1 118
270.0 2 1 122
268.5 2 3 125
267.0 3 130
265.5 1 133
264.0 2 1 134
262.5 3 1 137
261.0 4 1 141
259.5 2 4 146
258.0 1 4 152
256.5 2 157
255.0 1 2 159
253.5 3 162
252.0 1 165
250.5 2 1 166
249.0 5 1 169
247.5 7 1 175
246.0 1 4 183
244.5 5 188
243.0 1 2 193
241.5 2 1 196
240.0 3 2 199
238.5 2 204
237.0 1 2 206
234.0 3 2 209
232.5 2 214
231.0 2 1 216
229.5 2 219
228.0 1 1 221
226.5 2 1 223
225.0 1 226
223.5 1 1 227
222.0 1 229
220.5 3 230
219.0 1 2 233
216.0 1 236
214.5 1 237
211.5 1 238
210.0 1 1 239
207.0 2 241
205.5 1 243
204.0 1 1 244
202.5 1 246
201.0 1 247
198.0 2 248
195.0 1 250
193.5 2 1 251
192.0 1 254
190.5 1 255
189.0 2 1 256
187.5 1 259
177.0 1 260
171.0 1 261
169.5 1 262
168.0 1 263
160.5 1 264
156.0 1 265
154.5 1 266
120.0 1 267
114.0 1 268
108.0 2 269
99.0 1 271
94.5 1 272
81.0 1 273
2008 AMC Contest Score Distributions
-----------------------------------------------
score 12 A 12 B 10 A 10 B
-----------------------------------------------
150.0 2 1
144.0 2 1
141.0 2
139.5 1
138.0 2 1 3
136.5 1 3
135.0 1 1
133.5 1
132.0 2 1 2
130.5 6 4 2
129.0 1 1 1
127.5 1 1 1
126.0 5 6 2 4
124.5 2 2
123.0 5 3 2
121.5 3 3 3 3
120.0 5 2 12 3
118.5 9 1 4 2
117.0 6 3 4 2
115.5 3 3 2 4
114.0 8 7 4 5
112.5 12 4 6 5
111.0 10 9 7
109.5 23 10 9 8
108.0 21 14 12 6
106.5 17 5 6 5
105.0 25 12 15 5
103.5 19 12 11 8
102.0 20 14 14 9
100.5 63 27 14 3
99.0 35 18 26 9
97.5 34 14 35 13
96.0 44 18 31 19
94.5 115 58 18 9
93.0 51 20 26 18
91.5 52 20 28 19
90.0 77 26 42 29
88.5 155 63 40 29
87.0 85 30 38 20
85.5 79 31 47 31
84.0 86 49 61 40
82.5 162 88 50 32
81.0 97 43 47 46
79.5 105 42 48 30
78.0 118 85 69 39
76.5 173 88 64 36
75.0 132 68 73 39
73.5 117 87 86 52
72.0 170 93 145 61
70.5 188 81 82 58
69.0 140 86 101 54
67.5 157 88 114 51
66.0 207 92 143 55
64.5 210 93 120 71
63.0 189 85 135 72
61.5 177 73 164 69
60.0 238 82 197 91
58.5 196 71 184 65
57.0 189 50 182 63
55.5 151 31 177 64
54.0 240 43 243 74
52.5 202 53 206 51
51.0 163 42 211 46
49.5 173 39 227 40
48.0 211 42 296 67
46.5 163 31 209 43
45.0 142 23 222 43
43.5 153 20 261 50
42.0 161 26 294 46
40.5 108 17 189 27
39.0 88 15 182 27
37.5 74 10 187 29
36.0 74 20 232 48
34.5 36 5 145 20
33.0 20 5 115 11
31.5 21 8 88 13
30.0 53 10 126 19
28.5 15 2 59 5
27.0 11 54 5
25.5 12 3 47 6
24.0 14 5 65 13
22.5 6 1 18 5
21.0 2 1 8 4
19.5 5 1 12 5
18.0 7 1 28 6
16.5 7
15.0 2 4 1
13.5 1 2
12.0 2 7 1
10.5 3
9.0 1 2
7.5 1
6.0 5
1
American Mathematics Competitions
2008 AMC 10 A Results for New York
SCORE DISTRIBUTION
score ----gender----------- -----------grade-----------------
male female ? <=6 7 8 9 10 ?
----------------------------------------------------------------------------------------
144.0 2 1 1
139.5 1
138.0 3 3
133.5 1 1
132.0 1 1
130.5 2 4
129.0 1 1
126.0 2 1 1
124.5 2 1 1
123.0 1 1 3
121.5 3 2 1
120.0 9 1 4 3 5
118.5 1 2 1 3
117.0 4 1 3
115.5 2 1 1
114.0 4 2 2
112.5 4 1 2 1 2 1
111.0 7 2 1 1 7
109.5 6 2 2 4 3
108.0 8 2 2 2 8
106.5 4 1 3 3
105.0 13 1 1 4 10
103.5 5 2 2 9
102.0 9 2 1 6 7
100.5 11 1 1 5 7 1
99.0 14 6 1 2 8 15
97.5 20 6 2 14 17 2
96.0 20 8 1 11 19
94.5 10 4 5 13
93.0 19 3 1 13 12
91.5 16 7 1 11 15 1
90.0 24 9 1 2 2 15 21 1
88.5 25 4 1 12 26 1
87.0 23 5 1 1 17 16 3
85.5 30 8 1 2 21 20 3
84.0 30 18 2 29 27 3
82.5 32 10 1 14 33 2
81.0 28 11 2 19 26
79.5 24 12 1 17 29 1
78.0 35 22 4 20 43 2
76.5 38 13 1 25 35 3
75.0 39 19 1 2 35 32 3
73.5 53 20 3 44 37 2
72.0 81 39 8 52 79 6
70.5 43 25 4 29 45 4
69.0 51 27 1 5 36 56 3
67.5 63 25 1 51 60 2
66.0 80 42 1 5 63 70 4
64.5 65 32 3 48 63 6
63.0 70 46 1 3 53 72 6
61.5 77 63 1 2 73 80 8
60.0 97 72 4 80 102 11
58.5 90 64 7 70 97 10
57.0 85 74 3 77 91 11
55.5 76 73 1 5 81 80 10
54.0 106 90 1 6 103 109 24
52.5 89 83 4 90 100 12
51.0 76 97 4 97 98 12
49.5 111 86 1 4 108 103 11
48.0 136 111 1 3 139 132 21
46.5 84 90 1 86 105 17
45.0 93 91 4 105 97 16
43.5 107 113 7 107 126 21
42.0 116 135 7 131 138 18
40.5 63 98 1 4 91 80 13
39.0 57 96 3 86 78 15
37.5 64 91 3 99 72 13
36.0 86 106 3 114 97 18
34.5 57 64 1 67 65 12
33.0 39 57 58 50 7
31.5 31 46 1 31 52 4
30.0 40 63 1 75 41 9
28.5 12 34 1 30 24 4
27.0 13 32 27 20 7
25.5 13 25 1 14 28 4
24.0 26 31 35 27 3
22.5 6 8 7 6 5
21.0 4 4 2 5 1
19.5 5 6 7 5
18.0 10 10 2 10 11 5
16.5 3 2 1 2 3 1
15.0 4 1 1 2
13.5 2 1 1
12.0 2 5 3 4
10.5 1 2 2 1
9.0 1 1 2
7.5 1
6.0 2 1 2 2 1
American Mathematics Competitions
2008 AMC 10 A Results for New York
Analysis
Table of Item Difficulty for the 2008
American High School Mathematics Examination
Tabulation of responses for all Participants
Percent of Responses
ITEM A B C D E OMITS ?
____ _____ _____ _____ _____ _____ _____ _____
1 1.53 0.68 7.29 85.43* 3.95 1.07 0.05
2 46.50* 19.16 22.93 1.75 1.34 8.30 0.03
3 69.27* 3.45 4.00 1.85 3.35 18.08 0.00
4 4.56 8.34 50.38* 10.21 5.70 20.78 0.03
5 6.50 31.19* 5.48 5.81 3.92 47.03 0.06
6 2.95 3.60 3.55 18.77* 44.35 26.74 0.03
7 42.25 4.29 6.19 3.03 13.33* 30.84 0.06
8 39.13* 7.96 2.97 24.86 3.24 21.80 0.05
9 2.44 29.45* 16.48 27.95 9.96 13.69 0.03
10 2.63 41.19 8.62 1.14 35.69* 10.71 0.03
11 5.78 5.05 7.86 54.10* 10.09 17.01 0.11
12 10.55 3.82 29.48* 10.27 6.04 39.80 0.05
13 14.07 27.56 10.00 26.09* 2.43 19.82 0.03
14 4.76 8.87 7.34 17.84* 4.60 56.54 0.05
15 3.80 3.83 23.47 20.24* 6.27 42.36 0.03
16 2.67 9.49* 6.47 17.77 7.55 56.00 0.05
17 7.48 8.08* 6.70 6.43 4.88 66.35 0.08
18 4.87 6.26* 5.72 5.70 3.80 73.60 0.06
19 4.87 5.89 8.60* 4.76 4.56 71.27 0.06
20 3.51 5.93 15.19 6.19* 2.92 66.18 0.08
21 10.35* 17.33 5.05 5.53 2.89 58.80 0.05
22 6.67 5.05 25.68 20.52* 7.55 34.45 0.08
23 11.86 5.58* 8.76 6.16 2.47 65.09 0.08
24 8.54 8.45 8.59 7.40* 8.28 58.69 0.05
25 3.28 6.50 5.76* 4.71 5.25 74.46 0.03
(*) Correct Response
(?) Response the computer was unable to read due to incomplete
erasures or two answers marked in the same column
American Mathematics Competitions
2008 AMC 12 A Results for New York
SCORE DISTRIBUTION
score ----gender----------- -----------grade-----------------
male female ? <=6 7 8 9 10 11 12 13 ?
----------------------------------------------------------------------------------------
150.0 1 2
138.0 2 2
136.5 1 1
135.0 1 1
132.0 1 1 1
130.5 5 1 3 3
129.0 1 1
127.5 1 1
126.0 2 1 1 3 1
124.5 2 1 1
123.0 4 1 1 1 3
121.5 2 1 3
120.0 5 2 3
118.5 8 1 2 7
117.0 6 2 4
115.5 3 1 1 1
114.0 7 1 1 1 6
112.5 8 3 2 10
111.0 7 2 2 8
109.5 18 2 1 9 13
108.0 18 2 6 15
106.5 10 3 1 7 7 2
105.0 14 5 1 3 10 11
103.5 13 4 10 9
102.0 17 2 1 1 5 12 1
100.5 37 14 1 1 3 32 25 1
99.0 24 7 3 13 18 1
97.5 22 6 2 17 14 1
96.0 35 6 1 3 19 21
94.5 64 30 5 50 57 3
93.0 29 16 3 3 20 25
91.5 31 15 2 3 26 20 1
90.0 51 18 2 6 28 41
88.5 92 42 1 1 7 64 79 3
87.0 51 22 5 40 39 1
85.5 46 21 1 3 32 43
84.0 48 28 3 49 31 3
82.5 86 43 6 70 79 1 6
81.0 48 35 2 51 43 1
79.5 55 37 2 3 50 47 3
78.0 61 39 2 5 48 62 1
76.5 93 49 3 10 72 80 8
75.0 60 51 4 9 66 48 5
73.5 64 43 5 8 51 53
72.0 82 64 1 3 6 82 72 6
70.5 107 56 1 3 8 97 77 2
69.0 68 50 1 2 6 66 60 5
67.5 65 63 2 9 76 65 5
66.0 111 63 1 1 8 105 88 4
64.5 110 76 9 110 89 2
63.0 84 82 1 7 87 87 1 6
61.5 78 74 3 9 89 70 6
60.0 122 88 1 3 10 120 94 10
58.5 89 83 2 8 118 66 2
57.0 86 85 5 13 87 81 1 2
55.5 71 63 6 74 70 1
54.0 101 111 3 6 126 98 7
52.5 81 103 2 5 114 77 4
51.0 60 84 6 83 70 4
49.5 69 83 3 8 73 85 4
48.0 97 89 3 4 115 85 4
46.5 59 89 6 86 68 3
45.0 43 84 2 4 72 56 8
43.5 59 75 1 6 83 61 2
42.0 72 78 1 5 80 70 5
40.5 49 46 1 1 10 44 48 4
39.0 27 50 2 4 53 26 3
37.5 32 28 2 1 35 30 6
36.0 33 32 2 31 38 3
34.5 13 20 4 17 14 1
33.0 4 11 1 6 12 1
31.5 8 9 1 16 4
30.0 22 27 1 21 30 1
28.5 8 7 1 7 7
27.0 5 4 2 4 4 1
25.5 4 5 1 7 4
24.0 5 9 1 5 8
22.5 3 3 4 2
21.0 1 2
19.5 3 1 4
18.0 5 1 1 4 2
15.0 1 1 2
13.5 1 1
12.0 2 1 1
9.0 1 1
American Mathematics Competitions
2008 AMC 12 A Results for New York
Analysis
Table of Item Difficulty for the 2008
American High School Mathematics Examination
Tabulation of responses for all Participants
Percent of Responses
ITEM A B C D E OMITS ?
____ _____ _____ _____ _____ _____ _____ _____
1 1.38 0.49 5.49 89.99* 1.87 0.75 0.03
2 92.42* 3.57 0.55 0.28 2.56 0.58 0.03
3 3.24 5.08 71.50* 7.45 3.07 9.65 0.02
4 5.31 49.83* 4.65 6.29 3.55 30.31 0.05
5 1.18 45.70* 11.48 26.63 7.22 7.73 0.06
6 50.72* 5.42 2.30 29.45 2.64 9.40 0.08
7 4.51 4.13 5.64 67.30* 7.28 11.05 0.08
8 5.47 6.30 59.39* 3.47 12.73 12.56 0.06
9 3.76 8.96 5.79 38.53* 4.81 38.03 0.13
10 11.51 23.28 9.83 39.96* 1.23 14.07 0.13
11 4.75 6.38 57.79* 6.59 4.54 19.84 0.11
12 10.75 27.75* 7.33 6.95 6.02 41.17 0.03
13 4.83 21.73* 8.84 16.92 8.65 39.00 0.05
14 9.45* 6.21 4.12 5.50 3.07 71.64 0.02
15 10.91 8.08 11.35 13.11* 9.45 47.02 0.08
16 3.36 6.81 5.47 10.82* 2.41 71.11 0.03
17 2.58 5.17 5.86 7.37* 5.27 73.70 0.05
18 2.89 4.35 7.20* 2.50 5.93 77.09 0.03
19 2.75 6.98 7.62* 4.97 2.39 75.27 0.02
20 2.36 4.62 3.84 2.81 4.97* 81.34 0.06
21 4.79 4.51 5.80 8.60* 2.99 73.23 0.08
22 3.62 5.71 6.81* 5.75 4.83 73.20 0.09
23 2.33 3.65 2.75 3.82* 2.03 85.38 0.05
24 3.65 14.21 7.56 3.44* 6.95 64.11 0.08
25 2.66 3.40 4.65 5.08* 3.21 80.93 0.08
(*) Correct Response
(?) Response the computer was unable to read due to incomplete
erasures or two answers marked in the same column
American Mathematics Competitions
2008 AMC 10 B Results for New York
SCORE DISTRIBUTION
score ----gender----------- -----------grade-----------------
male female ? <=6 7 8 9 10 ?
----------------------------------------------------------------------------------------
150.0 1 1
144.0 1
141.0 1 1 1
135.0 1 1
132.0 1 1 1 1
130.5 2 1 1
129.0 1 1
127.5 1 1
126.0 2 1 1 3
123.0 1 1 1
121.5 2 1 1 1 1
120.0 2 1 1 1
118.5 2 1 1
117.0 2 1 1
115.5 3 1 1 3
114.0 2 1 2 2 1
112.5 4 1 1 2 1
111.0 5 2 1 1 5
109.5 5 2 1 7
108.0 5 1 1 5
106.5 5 1 3 1
105.0 3 2 5
103.5 7 1 3 4 1
102.0 7 1 6 3
100.5 3 3
99.0 6 2 4 4 1
97.5 10 2 5 8
96.0 12 4 7 9 3
94.5 5 3 1 8
93.0 11 5 1 2 7 8
91.5 10 6 9 10
90.0 14 6 16 12 1
88.5 19 8 1 14 14
87.0 17 2 10 10
85.5 15 10 1 14 15 1
84.0 25 13 21 18 1
82.5 20 8 1 13 18
81.0 32 13 20 25 1
79.5 18 11 1 15 14
78.0 25 10 16 23
76.5 22 11 3 1 16 16
75.0 23 13 2 15 22
73.5 25 21 1 23 26 2
72.0 38 17 1 24 36
70.5 27 23 23 30 5
69.0 27 21 1 23 28 2
67.5 27 17 1 23 24 3
66.0 27 23 1 1 2 21 29 1
64.5 38 29 1 1 4 32 31 2
63.0 37 29 4 5 31 32
61.5 31 33 4 32 32 1
60.0 44 38 2 2 49 36 2
58.5 32 25 2 1 36 24 2
57.0 22 34 32 27 4
55.5 28 28 1 1 1 30 28 3
54.0 27 39 1 1 1 36 31 4
52.5 25 23 1 2 22 25 1
51.0 19 26 1 23 21 1
49.5 20 17 1 2 22 14 1
48.0 24 32 4 35 25 3
46.5 13 27 1 1 2 16 21 2
45.0 18 23 1 1 22 17 2
43.5 20 25 1 1 1 26 20 1
42.0 25 19 1 1 1 23 20
40.5 9 15 1 2 17 7
39.0 10 16 1 14 11 1
37.5 10 14 1 3 13 12
36.0 21 22 2 25 20 1
34.5 7 11 1 11 7 1
33.0 3 8 1 2 3 5
31.5 3 8 9 3 1
30.0 9 8 1 13 5
28.5 3 2 4 1
27.0 5 1 4
25.5 1 5 1 5
24.0 2 9 10 3
22.5 1 3 1 2 1 1
21.0 1 3 1 2 1
19.5 2 2 1 1 2 1
18.0 4 1 2 3 1
15.0 1 1
12.0 1 1
1 1
American Mathematics Competitions
2008 AMC 10 B Results for New York
Analysis
Table of Item Difficulty for the 2008
American High School Mathematics Examination
Tabulation of responses for all Participants
Percent of Responses
ITEM A B C D E OMITS ?
____ _____ _____ _____ _____ _____ _____ _____
1 3.65 0.91 3.27 10.42 77.91* 3.79 0.05
2 5.62 75.50* 9.08 2.40 2.07 5.33 0.00
3 16.71 3.79 6.29 33.57* 5.33 34.29 0.00
4 10.61 12.06 64.60* 1.87 0.91 9.94 0.00
5 54.32* 5.09 2.88 1.92 4.23 31.56 0.00
6 4.27 3.41 43.28* 9.22 7.49 32.32 0.00
7 5.57 7.06 64.27* 4.90 5.43 12.78 0.00
8 2.21 8.55 55.00* 9.27 5.14 19.84 0.00
9 22.48* 5.67 5.52 9.17 5.43 51.73 0.00
10 16.62* 5.57 5.19 4.27 5.62 62.68 0.05
11 1.92 12.10* 4.90 9.89 3.51 67.63 0.05
12 69.98* 5.76 4.76 2.26 2.88 14.36 0.00
13 19.36 11.53* 7.30 2.88 3.89 55.04 0.00
14 11.67 31.08* 3.94 4.23 2.50 46.59 0.00
15 15.27* 7.16 6.34 5.43 4.47 61.29 0.05
16 23.54* 22.53 3.70 4.08 4.61 41.45 0.10
17 18.01 10.52* 17.77 11.14 6.53 36.02 0.00
18 6.92 18.73* 11.53 5.14 2.79 54.90 0.00
19 3.17 1.83 7.64 8.02 5.57* 73.78 0.00
20 7.40 35.83* 9.51 6.44 3.07 37.75 0.00
21 8.45 8.36 6.29* 6.53 5.19 65.08 0.10
22 9.99 6.53 21.95* 10.90 5.67 44.91 0.05
23 8.79 6.82* 4.90 6.48 2.21 70.80 0.00
24 6.24 8.07 9.08* 7.20 10.57 58.84 0.00
25 17.39 12.30* 7.25 5.00 4.66 53.41 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
2008 AMC 12 B Results for New York
SCORE DISTRIBUTION
score ----gender----------- -----------grade-----------------
male female ? <=6 7 8 9 10 11 12 13 ?
----------------------------------------------------------------------------------------
138.0 1 1
136.5 3 1 2
127.5 1 1
126.0 6 3 3
121.5 3 2 1
120.0 2 2
118.5 1 1
117.0 3 1 1 1
115.5 3 1 2
114.0 5 1 1 1 3 2
112.5 4 1 1 1 1
109.5 9 1 1 5 3
108.0 9 3 1 9 3 1
106.5 4 1 2 1 2
105.0 7 4 1 4 7
103.5 10 1 1 2 2 7
102.0 11 3 3 2 9
100.5 19 6 3 1 9 14
99.0 10 5 2 2 6 8
97.5 10 2 1 5 7 1
96.0 13 5 7 9 2
94.5 39 14 1 1 3 23 28 2
93.0 9 5 1 4 6 9
91.5 19 1 1 2 5 12
90.0 19 4 2 11 13
88.5 42 12 2 35 24 2
87.0 14 11 3 12 13 2
85.5 15 11 1 3 17 10
84.0 32 14 1 6 22 19 1
82.5 54 21 1 1 1 2 9 43 28 3
81.0 23 15 1 4 20 16 2
79.5 25 15 2 3 15 21 1
78.0 50 29 1 1 2 6 39 34 2
76.5 44 28 1 1 9 39 36 2
75.0 41 23 6 35 26 1
73.5 45 28 1 5 5 46 28 2
72.0 49 35 1 2 8 46 34 2
70.5 48 24 1 2 4 43 30 1
69.0 34 40 1 8 40 35 2
67.5 38 40 1 9 43 32 3
66.0 50 30 1 3 8 45 33 2
64.5 52 33 7 58 25 3
63.0 36 40 2 6 47 27 3
61.5 32 31 1 6 35 28 3
60.0 37 36 1 5 7 44 23 2
58.5 27 35 1 2 7 37 22 2
57.0 20 24 3 2 28 15 2
55.5 11 15 2 3 18 6 2
54.0 18 21 3 2 24 14
52.5 24 27 9 26 17 1
51.0 21 18 1 1 2 4 16 17 1
49.5 15 19 1 6 20 11 1
48.0 21 18 1 1 30 10
46.5 11 19 5 19 7
45.0 6 16 1 1 3 10 8
43.5 9 11 1 14 5
42.0 10 14 2 19 5
40.5 4 9 1 1 10 4 1
39.0 7 7 3 8 2 2
37.5 2 7 9 1
36.0 10 9 3 11 5 1
34.5 5 4 1
33.0 3 2 1 3 1
31.5 2 5 1 1 1 3 2
30.0 5 5 1 1 7 1
28.5 1 1 2
25.5 1 2 1 1 1
24.0 2 3 4 1
22.5 1 1
21.0 1 1
19.5 1 1
18.0 1 1
American Mathematics Competitions
2008 AMC 12 B Results for New York
Analysis
Table of Item Difficulty for the 2008
American High School Mathematics Examination
Tabulation of responses for all Participants
Percent of Responses
ITEM A B C D E OMITS ?
____ _____ _____ _____ _____ _____ _____ _____
1 1.08 0.47 2.41 9.17 86.10* 0.77 0.00
2 5.34 82.75* 6.07 1.20 1.25 3.40 0.00
3 4.95 8.48 80.59* 1.42 0.47 4.09 0.00
4 1.64 2.19 2.97 80.46* 2.84 9.90 0.00
5 1.55 6.33 70.61* 5.81 5.08 10.63 0.00
6 85.97* 4.04 2.24 0.82 2.02 4.82 0.09
7 80.38* 2.50 1.85 1.16 2.15 11.88 0.09
8 1.72 2.54 68.98* 7.14 4.69 14.93 0.00
9 34.47* 5.94 5.03 5.55 3.49 45.48 0.04
10 2.93 40.83* 10.84 4.78 4.52 36.06 0.04
11 13.34* 7.79 4.95 10.11 22.76 41.01 0.04
12 14.67 28.70* 7.79 3.36 6.41 39.03 0.04
13 3.18 18.37* 3.57 5.77 2.50 66.61 0.00
14 5.42 5.94 34.90* 6.15 3.66 43.93 0.00
15 2.50 4.82 11.57* 6.58 6.76 67.77 0.00
16 13.77 13.12* 6.58 5.94 1.85 58.73 0.00
17 4.22 4.69 6.50* 3.61 2.75 78.23 0.00
18 3.18 4.00 5.72 7.31 7.49* 72.29 0.00
19 3.79 4.91* 5.55 4.52 2.58 78.66 0.00
20 17.60 14.41* 7.10 4.52 2.71 53.61 0.04
21 2.11 2.93 4.26 4.48 2.62* 83.61 0.00
22 6.07 5.16 7.10 4.48 6.28* 70.91 0.00
23 3.06* 4.17 4.95 3.14 1.38 83.30 0.00
24 1.68 3.53 3.23* 2.88 1.29 87.39 0.00
25 2.15 3.23* 4.56 3.87 2.50 83.69 0.00
(*) Correct Response
(?) Response the computer was unable to read due to incomplete
erasures or two answers marked in the same column