American Mathematics Competitions
2006 AMC 10 A Results for Texas
GRAND STATISTICS
TOTAL NUMBER of official students taking exam: 2882
Number of unofficial participants: 0
Average score of participants: 81.7
Average score for female students is: 77.9 ( 1201 Students)
Average score for male students is: 84.5 ( 1384 Students)
Average score for unspecified gender is 84.3 ( 297 Students)
Average score for grade 10 is: 83.2 ( 1578 Students)
Average score for grade 9 is: 79.3 ( 1146 Students)
Average score for grade 8 and below is: 94.4 ( 60 Students)
Average score with unknown grade: 79.8 ( 98 Students)
AIME qualifying score = 120.0 or better
Number of AIME qualifers 67
Number of schools returning results 90
Average school winning score 111.41
American Mathematics Competitions
2006 AMC 12 A Results for Texas
GRAND STATISTICS
TOTAL NUMBER of official students taking exam: 3556
Number of unofficial participants: 17
Average score of participants: 87.0
Average score for female students is: 83.2 ( 1452 Students)
Average score for male students is: 89.9 ( 1939 Students)
Average score for unspecified gender is 86.1 ( 165 Students)
Average score for grade 13 is: 67.8 ( 2 Students)
Average score for grade 12 is: 90.4 ( 1422 Students)
Average score for grade 11 is: 85.3 ( 1605 Students)
Average score for grade 10 is: 85.5 ( 261 Students)
Average score for grade 9 is: 79.6 ( 185 Students)
Average score for grade 8 and below is: 64.3 ( 2 Students)
Average score with unknown grade: 82.5 ( 79 Students)
AIME qualifying score = 100.0 or better
Number of AIME qualifers 843
Number of schools returning results 97
Average school winning score 114.92
Average school team score 324.39
American Mathematics Competitions
2006 AMC 10 B Results for Texas
GRAND STATISTICS
TOTAL NUMBER of official students taking exam: 864
Number of unofficial participants: 8
Average score of participants: 65.9
Average score for female students is: 58.4 ( 412 Students)
Average score for male students is: 74.1 ( 383 Students)
Average score for unspecified gender is 65.6 ( 69 Students)
Average score for grade 10 is: 65.3 ( 489 Students)
Average score for grade 9 is: 65.4 ( 337 Students)
Average score for grade 8 and below is: 92.9 ( 12 Students)
Average score with unknown grade: 71.9 ( 26 Students)
AIME qualifying score = 120.0 or better
Number of AIME qualifers 20
Number of schools returning results 39
Average school winning score 104.95
American Mathematics Competitions
2006 AMC 12 B Results for Texas
GRAND STATISTICS
TOTAL NUMBER of official students taking exam: 1413
Number of unofficial participants: 14
Average score of participants: 86.4
Average score for female students is: 78.1 ( 574 Students)
Average score for male students is: 92.0 ( 762 Students)
Average score for unspecified gender is 92.3 ( 77 Students)
Average score for grade 13 is: 130.0 ( 1 Student)
Average score for grade 12 is: 83.6 ( 616 Students)
Average score for grade 11 is: 86.7 ( 524 Students)
Average score for grade 10 is: 95.5 ( 133 Students)
Average score for grade 9 is: 90.9 ( 58 Students)
Average score for grade 8 and below is: 86.3 ( 60 Students)
Average score with unknown grade: 87.3 ( 21 Students)
AIME qualifying score = 100.0 or better
Number of AIME qualifers 343
Number of schools returning results 57
Average school winning score 113.86
Average school team score 309.87
2006 State AMC 12 TEAM Score Distribution
-----------------------------------------------
score A B Rank
-----------------------------------------------
414.5 1 1
399.0 1 2
398.5 1 3
389.0 1 4
386.5 1 5
382.0 1 1 6
377.0 1 8
376.5 1 9
376.0 1 10
373.0 1 11
372.5 1 12
371.5 1 13
370.5 1 14
368.0 1 15
367.0 1 16
366.5 2 17
364.0 1 19
363.5 1 20
362.5 1 21
362.0 2 22
360.0 1 24
359.5 1 25
357.5 2 26
356.0 1 28
355.5 1 29
355.0 1 1 30
354.0 4 32
352.0 2 36
350.5 1 38
349.5 1 39
347.0 3 40
345.5 2 43
343.5 1 45
343.0 1 46
342.5 2 47
341.5 1 49
341.0 2 50
340.0 1 52
339.5 1 53
339.0 1 1 54
338.5 2 56
338.0 1 58
337.5 2 1 59
336.5 1 62
336.0 3 1 63
335.0 3 1 67
334.0 1 71
333.0 1 72
332.5 1 73
332.0 1 74
331.5 2 75
331.0 1 77
330.0 1 78
329.5 1 79
329.0 1 80
328.5 1 1 81
328.0 4 83
327.5 1 87
326.0 1 1 88
325.5 1 90
324.5 1 91
322.5 1 92
322.0 3 1 93
321.0 2 97
320.5 1 1 99
320.0 2 101
319.0 1 103
318.5 2 104
317.5 2 106
316.5 1 108
313.0 1 109
312.0 1 1 110
311.5 1 112
308.5 1 113
308.0 1 114
307.0 1 115
304.0 2 116
303.0 1 118
300.0 1 119
299.5 1 120
299.0 1 121
298.0 1 122
297.0 1 123
294.5 2 124
291.5 1 126
290.5 1 1 127
284.0 1 129
282.5 1 130
279.5 1 131
274.0 1 1 132
271.5 2 134
268.5 1 136
267.5 1 137
265.5 1 138
264.0 1 139
263.5 1 140
260.5 1 141
259.5 1 142
255.5 1 143
248.5 1 144
229.5 1 145
228.5 1 146
207.0 1 1 147
190.5 1 149
127.5 1 150
120.5 1 151
102.0 1 152
96.5 1 153
79.0 1 154
2006 AMC Contest Score Distributions
-----------------------------------------------
score 12 A 12 B 10 A 10 B
-----------------------------------------------
150.0 3
146.5 1
144.0 2 4
140.5 3
138.0 1 9
137.0 2 1 1
136.0 2 1 1
134.5 1 3
133.5 1 1 1
132.5 4 5 1
132.0 4 1
131.0 1 1
130.0 2 5 1 2
129.0 3 1
128.5 1 1
127.5 1 2 3 2
126.5 1 2 5 2
126.0 1 1
125.5 3 4 1 2
125.0 1 2
124.0 3 6 4
123.0 3 8 4 1
122.5 1 1
122.0 10 9 1
121.5 2 4 2
120.5 6 4 5
120.0 1
119.5 9 5 6 2
119.0 3
118.5 32 5 1
118.0 1 1 14
117.0 8 9 4 3
116.5 1
116.0 33 10 10 2
115.5 2 1 1
115.0 22 13 2 2
114.5 2 2 10 1
114.0 2 1
113.5 13 4 8 3
113.0 1 3
112.5 70 13 3 2
112.0 1 1 10 1
111.5 23 11 5
111.0 10 3 15 2
110.5 1
110.0 48 11 14 2
109.5 5
109.0 48 14 6 2
108.5 1 11 1
108.0 28 21 4 1
107.5 8 6 17 5
107.0 2
106.5 65 10 14 2
106.0 2 1 6 1
105.5 47 22 11
105.0 15 2 24 3
104.5 24 23 3
104.0 45 5 28 6
103.5 1 6
103.0 70 15 15 1
102.5 5 10 2
102.0 51 37 11 5
101.5 21 1 25 4
101.0 35 29 6
100.5 64 9 21 2
100.0 3 1 7 1
99.5 69 21 16 3
99.0 5 16 1
98.5 37 41 23 3
98.0 46 5 32 2
97.5 4 8 15 1
97.0 63 8 31 4
96.5 2 1 11 1
96.0 81 21 31 4
95.5 16 1 38 3
95.0 57 61 22 1
94.5 74 8 33 3
94.0 9 8 13
93.5 72 13 31 5
93.0 8 18 2
92.5 59 51 22 4
92.0 32 5 33 6
91.5 17 18 20 3
91.0 51 9 28 6
90.5 7 4 13
90.0 71 27 35 6
89.5 19 1 24 3
89.0 66 56 33 3
88.5 49 3 27 4
88.0 18 9 20 1
87.5 57 11 42 7
87.0 15 4 18 5
86.5 51 16 32 7
86.0 23 3 36 6
85.5 20 14 34 6
85.0 45 9 25 4
84.5 17 13 17
84.0 62 23 57 4
83.5 11 3 22
83.0 74 45 48 3
82.5 39 4 39 8
82.0 20 22 31 4
81.5 54 16 44 9
81.0 17 8 28 1
80.5 69 17 49 7
80.0 26 3 42 6
79.5 21 14 34 10
79.0 40 7 30 6
78.5 25 19 23 3
78.0 74 11 33 9
77.5 8 6 24 4
77.0 61 25 52 16
76.5 26 4 26 7
76.0 26 23 24 5
75.5 40 4 39 10
75.0 17 9 27 8
74.5 37 9 31 9
74.0 20 3 43 8
73.5 33 24 42 7
73.0 29 6 29 4
72.5 18 15 24 8
72.0 42 20 39 11
71.5 18 4 24 4
71.0 49 22 33 14
70.5 24 4 23 5
70.0 14 10 27 12
69.5 34 11 18 5
69.0 24 15 23 5
68.5 29 9 37 5
68.0 9 24 6
67.5 15 5 29 7
67.0 17 6 22 7
66.5 15 6 13 4
66.0 27 6 34 12
65.5 14 4 25 9
65.0 35 8 21 13
64.5 18 6 17 6
64.0 17 5 18 8
63.5 14 3 13 7
63.0 11 4 16 7
62.5 22 2 14 21
62.0 10 6 13 6
61.5 8 7 15 10
61.0 11 4 15 3
60.5 8 4 11 9
60.0 23 5 24 8
59.5 7 3 12 9
59.0 12 6 12 13
58.5 10 1 12 8
58.0 10 4 13 4
57.5 8 2 9 5
57.0 5 2 10 3
56.5 14 5 12 9
56.0 6 1 12 3
55.5 5 3 12 2
55.0 5 4 9 7
54.5 3 3 9 3
54.0 16 5 18 5
53.5 3 1 4 4
53.0 14 5 9 4
52.5 5 2 6 3
52.0 4 2 8 1
51.5 3 1 5 2
51.0 5 3 7 3
50.5 2 1 8 7
50.0 1 1 5 5
49.5 3 2 5 6
49.0 4 2 5 4
48.5 2 3 5
48.0 10 4 7 7
47.5 2 6
47.0 2 3 2 5
46.5 1 1 2 4
46.0 1 6 2
45.5 3 2 2 3
45.0 1 1 8 3
44.5 3 4
44.0 1 1 1 6
43.5 2 2 2 2
43.0 1 6
42.5 1 1 5 2
42.0 12 6 9 8
41.5 2 1 3 2
41.0 2 5
40.5 1 2
40.0 1 4
39.5 1 4
39.0 1 1 5
38.5 1 4 6 7
38.0 1 1 2 2
37.5 2 4
37.0 1 3 4
36.5 1 1 2
36.0 2 3 7 14
35.5 1 2
35.0 1 1 4
34.5 2
34.0 1 2 4
33.5 2 1 1
33.0 1 4 2 2
32.5 1 3
32.0 1 1
31.5 2 1
31.0 2
30.5 4
30.0 3 4 3 10
29.5 1
28.5 4
28.0 1 3
27.5 1
27.0 3 1
26.5 1 1
26.0 3
25.5 1
25.0 2
24.5 1
24.0 2 4 1 12
23.5 1
23.0 1
22.5 1
21.0 1
20.5 2
18.5 2
18.0 1 13
17.5 2
14.5 1
12.0 1 7
11.0 1
8.5 1
6.0 2
2
American Mathematics Competitions
2006 AMC 10 A Results for Texas
SCORE DISTRIBUTION
GENDER
Score # Students Score # Students Score # Students
male female male female male female
150.0 2 1 125.0 2 100.0 6 1
149.5 124.5 99.5 7 8
149.0 124.0 4 1 99.0 13 1
148.5 123.5 98.5 13 7
148.0 123.0 4 98.0 22 6
147.5 122.5 1 97.5 7 6
147.0 122.0 97.0 15 14
146.5 121.5 4 96.5 7 3
146.0 121.0 96.0 21 9
145.5 120.5 3 95.5 22 10
145.0 120.0 1 95.0 10 11
144.5 119.5 5 1 94.5 21 9
144.0 2 119.0 1 94.0 8 4
143.5 118.5 93.5 13 17
143.0 118.0 7 5 93.0 10 5
142.5 117.5 92.5 10 10
142.0 117.0 4 92.0 20 9
141.5 116.5 1 91.5 9 5
141.0 116.0 6 91.0 18 9
140.5 3 115.5 1 90.5 6 6
140.0 115.0 2 90.0 15 15
139.5 114.5 8 2 89.5 14 9
139.0 114.0 89.0 13 16
138.5 113.5 5 2 88.5 15 8
138.0 5 1 113.0 1 1 88.0 10 8
137.5 112.5 1 2 87.5 19 18
137.0 1 112.0 5 3 87.0 13 5
136.5 111.5 2 2 86.5 21 11
136.0 1 111.0 6 4 86.0 19 14
135.5 110.5 1 85.5 18 15
135.0 110.0 7 4 85.0 10 13
134.5 2 1 109.5 3 2 84.5 5 11
134.0 109.0 4 1 84.0 31 21
133.5 1 108.5 5 3 83.5 14 7
133.0 108.0 2 1 83.0 17 29
132.5 107.5 8 7 82.5 14 19
132.0 4 107.0 2 82.0 11 17
131.5 106.5 10 3 81.5 16 22
131.0 1 106.0 4 1 81.0 10 15
130.5 105.5 5 4 80.5 25 19
130.0 1 105.0 17 7 80.0 22 17
129.5 104.5 2 1 79.5 10 20
129.0 1 104.0 15 6 79.0 15 14
128.5 103.5 4 1 78.5 10 11
128.0 103.0 8 6 78.0 16 13
127.5 2 102.5 6 2 77.5 11 10
127.0 102.0 4 3 77.0 21 23
126.5 5 101.5 13 9 76.5 13 12
126.0 1 101.0 5 1 76.0 9 11
125.5 1 100.5 14 5 75.5 17 17
American Mathematics Competitions
2006 AMC 10 A Results for Texas
SCORE DISTRIBUTION
GENDER
Score # Students Score # Students Score # Students
male female male female male female
75.0 11 12 50.0 2 2 25.0
74.5 13 16 49.5 4 1 24.5
74.0 20 19 49.0 1 2 24.0 1
73.5 19 21 48.5 2 23.5
73.0 13 15 48.0 2 5 23.0
72.5 10 11 47.5 2 3 22.5
72.0 21 16 47.0 2 22.0
71.5 9 13 46.5 2 21.5
71.0 16 12 46.0 3 3 21.0
70.5 12 9 45.5 1 1 20.5
70.0 9 15 45.0 4 3 20.0
69.5 8 9 44.5 3 19.5
69.0 11 10 44.0 1 19.0
68.5 13 22 43.5 2 18.5
68.0 14 9 43.0 18.0
67.5 8 20 42.5 1 3 17.5
67.0 10 10 42.0 5 2 17.0
66.5 7 6 41.5 2 1 16.5
66.0 16 15 41.0 16.0
65.5 9 14 40.5 15.5
65.0 9 8 40.0 1 15.0
64.5 6 10 39.5 1 14.5
64.0 5 12 39.0 1 14.0
63.5 7 5 38.5 3 2 13.5
63.0 4 10 38.0 1 1 13.0
62.5 9 2 37.5 1 12.5
62.0 6 6 37.0 12.0
61.5 4 11 36.5 1 11.5
61.0 3 10 36.0 4 2 11.0
60.5 3 6 35.5 10.5
60.0 11 12 35.0 1 10.0
59.5 6 6 34.5 9.5
59.0 4 7 34.0 2 9.0
58.5 3 7 33.5 1 8.5
58.0 9 2 33.0 1 1 8.0
57.5 3 5 32.5 7.5
57.0 5 5 32.0 7.0
56.5 4 7 31.5 1 6.5
56.0 3 8 31.0 6.0
55.5 4 6 30.5 5.5
55.0 1 7 30.0 1 2 5.0
54.5 4 5 29.5 4.5
54.0 5 9 29.0 4.0
53.5 1 3 28.5 3.5
53.0 5 2 28.0 3.0
52.5 1 4 27.5 2.5
52.0 2 5 27.0 2.0
51.5 3 2 26.5 1.5
51.0 5 2 26.0 1.0
50.5 1 7 25.5 .5
0.0 0 0
American Mathematics Competitions
2006 AMC 10 A Results for Texas
SCORE DISTRIBUTION
score -----------grade-----------
6 7 8 9 10 unknown
---------------------------
150.0 2 1
144.0 3 1
140.5 1 2
138.0 2 4 3
137.0 1
136.0 1
134.5 3
133.5 1
132.5 1
132.0 1 2 1
131.0 1
130.0 1
129.0 1
128.5 1
127.5 1 2
126.5 5
126.0 1
125.5 1
125.0 2
124.0 1 2 3
123.0 1 1 2
122.5 1
121.5 1 2 1
120.5 1 4
120.0 1
119.5 1 5
119.0 2 1
118.0 4 2 7 1
117.0 2 2
116.5 1
116.0 2 6 2
115.5 1
115.0 1 1
114.5 3 7
114.0 1
113.5 1 7
113.0 1 2
112.5 1 2
112.0 1 4 5
111.5 1 4
111.0 1 2 12
110.5 1
110.0 5 8 1
109.5 1 4
109.0 2 3 1
108.5 6 5
108.0 4
107.5 1 5 11
107.0 1 1
106.5 2 1 11
106.0 1 3 2
105.5 7 4
105.0 8 16
104.5 2 1
104.0 7 20 1
103.5 6
103.0 2 2 10 1
102.5 10
102.0 2 8 1
101.5 1 5 17 2
101.0 3 3
100.5 1 8 12
100.0 2 2 3
99.5 6 10
99.0 6 9 1
98.5 8 13 2
98.0 8 22 2
97.5 1 7 7
97.0 9 19 3
96.5 2 9
96.0 1 16 14
95.5 1 9 25 3
95.0 7 15
94.5 9 24
94.0 1 5 7
93.5 17 14
93.0 1 7 9 1
92.5 1 8 12 1
92.0 1 11 20 1
91.5 8 10 2
91.0 1 12 15
90.5 6 7
90.0 16 17 2
89.5 1 9 13 1
89.0 12 20 1
88.5 7 19 1
88.0 1 9 9 1
87.5 17 23 2
87.0 7 11
86.5 13 19
86.0 14 22
85.5 17 16 1
85.0 1 1 6 16 1
84.5 10 7
84.0 1 1 24 30 1
83.5 1 1 6 13 1
83.0 22 25 1
82.5 11 28
82.0 1 13 17
81.5 1 19 23 1
81.0 13 15
80.5 1 23 23 2
80.0 15 27
79.5 11 20 3
79.0 14 15 1
78.5 1 7 14 1
78.0 1 12 18 2
77.5 8 14 2
77.0 24 24 4
76.5 9 17
76.0 9 14 1
75.5 1 21 17
75.0 15 9 3
74.5 13 17 1
74.0 23 19 1
73.5 16 25 1
73.0 2 14 13
72.5 1 16 7
72.0 15 22 2
71.5 1 14 9
71.0 1 14 18
70.5 10 13
70.0 1 11 14 1
69.5 10 8
69.0 16 6 1
68.5 19 16 2
68.0 1 9 13 1
67.5 14 15
67.0 1 6 14 1
66.5 5 8
66.0 11 21 2
65.5 10 14 1
65.0 4 17
64.5 3 13 1
64.0 9 9
63.5 5 8
63.0 9 6 1
62.5 7 5 2
62.0 8 4 1
61.5 7 8
61.0 9 4 2
60.5 6 3 2
60.0 1 10 13
59.5 5 7
59.0 6 5 1
58.5 5 7
58.0 5 8
57.5 3 6
57.0 7 3
56.5 7 5
56.0 7 5
55.5 1 5 5 1
55.0 6 3
54.5 4 5
54.0 6 11 1
53.5 2 2
53.0 4 5
52.5 2 3 1
52.0 3 5
51.5 2 3
51.0 4 3
50.5 2 6
50.0 1 3 1
49.5 3 2
49.0 1 3 1
48.5 2 1
48.0 3 4
47.5 3 2 1
47.0 2
46.5 1 1
46.0 3 3
45.5 1 1
45.0 1 5 2
44.5 3
44.0 1
43.5 1 1
42.5 2 2 1
42.0 6 2 1
41.5 3
40.5 1
40.0 1
39.5 1
39.0 1
38.5 3 2 1
38.0 1 1
37.5 1 1
36.5 1
36.0 2 4 1
35.0 1
34.0 1 1
33.5 1
33.0 1 1
31.5 1
30.0 3
24.0 1
American Mathematics Competitions
2006 AMC 10 A Results for Texas
Analysis
Table of Item Difficulty for the 2006
American High School Mathematics Examination
Tabulation of responses for all Participants
Percent of Responses
ITEM A B C D E OMITS ?
____ _____ _____ _____ _____ _____ _____ _____
1 9.93* 0.02 0.02 0.02 0.01 0.01 0.00
2 1.25 0.18 3.30* 0.12 1.60 3.55 0.00
3 0.05 8.96* 0.06 0.03 0.86 0.05 0.00
4 2.31 0.16 0.08 0.15 6.83* 0.47 0.01
5 0.12 1.10 1.12 7.11* 0.18 0.37 0.00
6 0.08 8.71* 0.23 0.09 0.05 0.83 0.00
7 7.31* 0.09 0.35 0.25 0.33 1.66 0.01
8 1.25 0.37 0.41 0.13 2.80* 5.03 0.00
9 1.42 1.17 5.88* 0.27 0.21 1.05 0.00
10 0.28 0.15 0.79 2.86 1.09* 4.83 0.00
11 1.89 1.02 1.52* 0.63 0.72 4.22 0.00
12 0.76 0.31 4.81* 0.94 0.35 2.82 0.00
13 0.24 0.85 0.20 5.84* 0.14 2.73 0.00
14 1.69 4.18* 0.20 0.77 0.56 2.60 0.00
15 0.70 0.37 0.37 1.74* 0.36 6.46 0.00
16 0.23 0.24 0.44 0.37* 0.65 8.07 0.00
17 2.07* 0.40 0.21 0.41 0.22 6.69 0.00
18 1.78 0.15 3.19* 0.27 0.10 4.51 0.00
19 0.30 1.35 0.84* 0.27 0.26 6.98 0.00
20 0.36 0.82 0.33 0.34 0.61* 7.53 0.00
21 0.58 0.56 0.35 0.53 1.05* 6.94 0.00
22 0.10 0.74 3.72* 3.20 0.69 1.55 0.00
23 0.39 1.88* 0.21 0.24 0.56 6.71 0.00
24 0.70 0.48* 0.30 0.21 0.27 8.04 0.00
25 2.41 0.68 0.48* 0.30 0.21 5.92 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
2006 AMC 12 A Results for Texas
SCORE DISTRIBUTION
GENDER
Score # Students Score # Students Score # Students
male female male female male female
150.0 125.0 1 100.0 2 1
149.5 124.5 99.5 43 23
149.0 124.0 99.0 4
148.5 123.5 98.5 18 16
148.0 123.0 3 98.0 33 11
147.5 122.5 97.5 1 3
147.0 122.0 8 2 97.0 34 24
146.5 121.5 96.5 2
146.0 121.0 96.0 49 28
145.5 120.5 5 1 95.5 12 4
145.0 120.0 95.0 39 18
144.5 119.5 9 94.5 45 24
144.0 1 119.0 94.0 6 3
143.5 118.5 26 6 93.5 33 34
143.0 118.0 1 93.0 4 4
142.5 117.5 92.5 30 26
142.0 117.0 8 92.0 19 11
141.5 116.5 91.5 10 7
141.0 116.0 23 9 91.0 32 18
140.5 115.5 90.5 5 2
140.0 115.0 13 8 90.0 34 34
139.5 114.5 2 89.5 12 6
139.0 114.0 89.0 30 32
138.5 113.5 9 3 88.5 29 15
138.0 113.0 88.0 10 8
137.5 112.5 57 11 87.5 41 14
137.0 2 112.0 1 87.0 9 5
136.5 111.5 18 5 86.5 18 30
136.0 2 111.0 8 2 86.0 18 5
135.5 110.5 85.5 8 11
135.0 110.0 36 12 85.0 21 21
134.5 109.5 84.5 8 9
134.0 109.0 33 13 84.0 27 32
133.5 1 108.5 83.5 8 3
133.0 108.0 14 12 83.0 42 28
132.5 3 1 107.5 8 82.5 29 10
132.0 107.0 82.0 9 11
131.5 106.5 41 21 81.5 28 24
131.0 106.0 2 81.0 7 8
130.5 105.5 24 22 80.5 31 36
130.0 1 1 105.0 9 5 80.0 13 13
129.5 104.5 11 13 79.5 10 11
129.0 104.0 30 12 79.0 18 19
128.5 1 103.5 1 78.5 10 13
128.0 103.0 42 24 78.0 32 36
127.5 1 102.5 4 1 77.5 3 4
127.0 102.0 29 18 77.0 28 28
126.5 1 101.5 17 4 76.5 16 10
126.0 101.0 17 15 76.0 10 15
125.5 3 100.5 38 21 75.5 19 20
American Mathematics Competitions
2006 AMC 12 A Results for Texas
SCORE DISTRIBUTION
GENDER
Score # Students Score # Students Score # Students
male female male female male female
75.0 7 8 50.0 1 25.0
74.5 19 15 49.5 3 24.5
74.0 13 7 49.0 3 1 24.0 2
73.5 13 18 48.5 23.5
73.0 15 13 48.0 5 5 23.0
72.5 9 8 47.5 22.5
72.0 21 20 47.0 2 22.0
71.5 4 13 46.5 1 21.5
71.0 23 26 46.0 21.0
70.5 11 9 45.5 1 2 20.5
70.0 6 8 45.0 1 20.0
69.5 16 14 44.5 19.5
69.0 9 14 44.0 1 19.0
68.5 11 16 43.5 1 1 18.5
68.0 6 3 43.0 1 18.0
67.5 6 9 42.5 1 17.5
67.0 11 6 42.0 9 2 17.0
66.5 6 9 41.5 1 1 16.5
66.0 8 17 41.0 1 1 16.0
65.5 6 8 40.5 15.5
65.0 15 19 40.0 15.0
64.5 11 6 39.5 14.5
64.0 7 7 39.0 1 14.0
63.5 7 5 38.5 1 13.5
63.0 2 9 38.0 1 13.0
62.5 9 12 37.5 12.5
62.0 2 6 37.0 1 12.0
61.5 3 5 36.5 1 11.5
61.0 6 5 36.0 2 11.0
60.5 4 4 35.5 10.5
60.0 9 12 35.0 10.0
59.5 5 2 34.5 9.5
59.0 2 10 34.0 9.0
58.5 2 7 33.5 8.5
58.0 6 4 33.0 1 8.0
57.5 6 2 32.5 1 7.5
57.0 3 2 32.0 7.0
56.5 7 7 31.5 6.5
56.0 1 5 31.0 6.0
55.5 1 3 30.5 5.5
55.0 2 3 30.0 3 5.0
54.5 1 2 29.5 1 4.5
54.0 6 10 29.0 4.0
53.5 3 28.5 3.5
53.0 6 7 28.0 3.0
52.5 4 27.5 2.5
52.0 2 1 27.0 2.0
51.5 2 1 26.5 1.5
51.0 5 26.0 1.0
50.5 1 1 25.5 .5
0.0 0 0
American Mathematics Competitions
2006 AMC 12 A Results for Texas
SCORE DISTRIBUTION
score -----------grade-----------
6 7 8 9 10 11 12 13 unknown
---------------------------
144.0 1 1
137.0 1 1
136.0 2
133.5 1
132.5 1 3
130.0 2
128.5 1
127.5 1
126.5 1
125.5 1 2
125.0 1
123.0 1 1 1
122.0 1 2 7
120.5 4 2
119.5 2 7
118.5 2 12 18
118.0 1
117.0 1 4 3
116.0 1 2 9 21
115.0 1 3 5 13
114.5 1 1
113.5 1 4 5 3
112.5 1 4 17 47 1
112.0 1
111.5 1 1 6 15
111.0 5 5
110.0 2 19 26 1
109.0 3 19 25 1
108.0 4 8 16
107.5 1 7
106.5 1 7 23 33 1
106.0 1 1
105.5 1 14 31 1
105.0 1 2 5 7
104.5 1 12 11
104.0 2 19 23 1
103.5 1
103.0 2 8 29 31
102.5 2 3
102.0 2 1 29 16 3
101.5 12 9
101.0 1 17 16 1
100.5 1 3 36 24
100.0 1 2
99.5 2 5 27 32 3
99.0 2 3
98.5 1 2 18 15 1
98.0 1 3 23 19
97.5 2 1 1
97.0 5 17 40 1
96.5 1 1
96.0 6 42 32 1
95.5 1 11 4
95.0 8 2 29 18
94.5 2 2 35 33 2
94.0 1 5 3
93.5 1 6 28 34 1 2
93.0 4 4
92.5 4 6 23 24 2
92.0 1 2 17 10 2
91.5 3 5 9
91.0 3 3 25 19 1
90.5 1 4 2
90.0 4 4 37 25 1
89.5 1 9 8 1
89.0 4 4 25 29 4
88.5 1 3 20 24 1
88.0 1 8 9
87.5 2 2 27 25 1
87.0 7 7 1
86.5 3 2 22 22 2
86.0 2 12 9
85.5 3 10 6 1
85.0 2 3 19 19 2
84.5 4 1 6 6
84.0 3 10 30 17 2
83.5 1 2 5 3
83.0 9 6 35 23 1
82.5 1 3 20 15
82.0 3 2 6 9
81.5 1 8 23 22
81.0 6 1 5 5
80.5 5 5 37 21 1
80.0 1 13 12
79.5 2 3 11 5
79.0 1 4 18 14 3
78.5 4 1 9 11
78.0 6 2 37 26 3
77.5 4 4
77.0 3 6 38 11 3
76.5 2 3 12 9
76.0 2 1 16 7
75.5 1 3 21 13 2
75.0 1 2 9 5
74.5 3 3 22 8 1
74.0 2 2 12 4
73.5 3 3 17 9 1
73.0 2 3 10 12 2
72.5 3 2 5 7 1
72.0 6 2 23 11
71.5 4 3 10 1
71.0 5 5 23 16
70.5 1 11 9 3
70.0 5 3 6
69.5 1 20 10 3
69.0 1 3 14 5 1
68.5 3 12 13 1
68.0 2 6 1
67.5 3 2 4 6
67.0 4 5 8
66.5 1 1 6 7
66.0 2 1 13 10 1
65.5 1 4 4 5
65.0 4 4 15 12
64.5 1 3 9 4 1
64.0 1 1 9 6
63.5 2 5 6 1
63.0 1 1 5 4
62.5 1 1 12 7 1
62.0 1 1 3 4 1
61.5 5 2 1
61.0 8 3
60.5 1 1 4 2
60.0 1 1 9 10 2
59.5 6 1
59.0 2 1 5 4
58.5 1 6 3
58.0 4 2 3 1
57.5 1 5 2
57.0 3 2
56.5 1 1 8 4
56.0 3 3
55.5 3 1 1
55.0 3 2
54.5 3
54.0 3 8 5
53.5 1 2
53.0 3 2 5 3 1
52.5 4 1
52.0 1 3
51.5 1 2
51.0 3 2
50.5 1 1
50.0 1
49.5 1 2
49.0 1 2 1
48.0 6 4
47.0 2
46.5 1
45.5 3
45.0 1
44.0 1
43.5 1 1
43.0 1
42.5 1
42.0 1 7 1 1 2
41.5 2
41.0 2
39.0 1
38.5 1
38.0 1
37.0 1
36.5 1
36.0 2
33.0 1
32.5 1
30.0 2 1
29.5 1
24.0 1 1
American Mathematics Competitions
2006 AMC 12 A Results for Texas
Analysis
Table of Item Difficulty for the 2006
American High School Mathematics Examination
Tabulation of responses for all Participants
Percent of Responses
ITEM A B C D E OMITS ?
____ _____ _____ _____ _____ _____ _____ _____
1 9.97* 0.00 0.02 0.00 0.00 0.01 0.00
2 1.42 0.13 5.30* 0.06 0.64 2.45 0.00
3 0.04 9.09* 0.03 0.02 0.78 0.04 0.00
4 1.92 0.09 0.03 0.09 7.53* 0.33 0.00
5 0.13 0.74 0.83 7.87* 0.12 0.31 0.00
6 7.57* 0.10 0.31 0.18 0.21 1.62 0.00
7 0.66 5.63* 0.73 0.50 0.34 2.14 0.00
8 0.77 1.19 6.86* 0.31 0.12 0.74 0.01
9 8.17* 0.17 0.07 0.04 0.27 1.29 0.00
10 0.21 0.14 0.59 3.54 2.03* 3.48 0.00
11 1.67 0.89 2.29* 0.80 0.53 3.81 0.00
12 1.33 5.67* 0.13 0.62 0.32 1.93 0.00
13 0.31 0.08 0.19 0.08 6.09* 3.26 0.00
14 0.06 0.37 5.08* 2.39 0.39 1.70 0.00
15 3.68* 1.45 0.22 0.51 1.52 2.62 0.00
16 0.25 4.29* 0.14 0.18 0.53 4.61 0.00
17 0.25 0.49* 0.37 0.35 0.10 8.44 0.00
18 1.20 0.05 0.23 0.50 0.39* 7.62 0.00
19 0.12 0.09 0.14 0.09 0.26* 9.31 0.00
20 1.72 0.51 0.49* 0.13 0.11 7.04 0.00
21 0.05 0.06 0.24 0.12 0.14* 9.39 0.00
22 0.11 0.07 0.12 0.12* 0.03 9.56 0.00
23 0.06 0.08* 0.13 0.04 0.12 9.58 0.00
24 0.81 0.12 0.12 0.22* 0.12 8.61 0.00
25 0.10 0.11 0.14 0.10 0.10* 9.45 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
2006 AMC 10 B Results for Texas
SCORE DISTRIBUTION
GENDER
Score # Students Score # Students Score # Students
male female male female male female
150.0 125.0 100.0 1
149.5 124.5 99.5 2
149.0 124.0 3 1 99.0 1
148.5 123.5 98.5 3
148.0 123.0 1 98.0 2
147.5 122.5 97.5 1
147.0 122.0 1 97.0 3 1
146.5 1 121.5 1 1 96.5 1
146.0 121.0 96.0 4
145.5 120.5 95.5 1 1
145.0 120.0 95.0 1
144.5 119.5 1 1 94.5 3
144.0 119.0 94.0
143.5 118.5 1 93.5 3 1
143.0 118.0 93.0 2
142.5 117.5 92.5 2 2
142.0 117.0 3 92.0 5
141.5 116.5 91.5 1 2
141.0 116.0 2 91.0 2 3
140.5 115.5 90.5
140.0 115.0 1 90.0 4 2
139.5 114.5 89.5 3
139.0 114.0 89.0 2 1
138.5 113.5 1 2 88.5 4
138.0 113.0 88.0 1
137.5 112.5 2 87.5 2 4
137.0 1 112.0 1 87.0 2 3
136.5 111.5 86.5 5 2
136.0 111.0 1 1 86.0 4 2
135.5 110.5 85.5 2 4
135.0 110.0 2 85.0 2 2
134.5 109.5 84.5
134.0 109.0 2 84.0 3
133.5 108.5 1 83.5
133.0 108.0 1 83.0 2 1
132.5 107.5 4 1 82.5 3 4
132.0 1 107.0 82.0 4
131.5 106.5 1 1 81.5 5 3
131.0 106.0 1 81.0 1
130.5 105.5 80.5 5 2
130.0 2 105.0 2 80.0 4 2
129.5 104.5 79.5 4 6
129.0 104.0 4 2 79.0 3 3
128.5 103.5 78.5 1 2
128.0 103.0 1 78.0 4 5
127.5 2 102.5 2 77.5 3 1
127.0 102.0 3 2 77.0 8 6
126.5 2 101.5 3 1 76.5 4 3
126.0 101.0 76.0 4
125.5 1 100.5 2 75.5 4 6
American Mathematics Competitions
2006 AMC 10 B Results for Texas
SCORE DISTRIBUTION
GENDER
Score # Students Score # Students Score # Students
male female male female male female
75.0 3 5 50.0 4 1 25.0 2
74.5 5 4 49.5 2 4 24.5 1
74.0 5 2 49.0 1 3 24.0 2 9
73.5 3 3 48.5 5 23.5 1
73.0 2 2 48.0 4 3 23.0 1
72.5 5 3 47.5 22.5 1
72.0 8 2 47.0 5 22.0
71.5 2 2 46.5 3 1 21.5
71.0 7 4 46.0 2 21.0 1
70.5 1 4 45.5 1 2 20.5 2
70.0 7 5 45.0 1 2 20.0
69.5 4 1 44.5 3 19.5
69.0 2 1 44.0 3 3 19.0
68.5 1 4 43.5 1 1 18.5 2
68.0 2 3 43.0 3 3 18.0 3 9
67.5 3 2 42.5 2 17.5 2
67.0 4 3 42.0 3 5 17.0
66.5 1 2 41.5 1 1 16.5
66.0 4 8 41.0 2 3 16.0
65.5 6 3 40.5 2 15.5
65.0 7 6 40.0 4 15.0
64.5 1 4 39.5 2 2 14.5 1
64.0 2 5 39.0 5 14.0
63.5 5 2 38.5 2 4 13.5
63.0 3 1 38.0 2 13.0
62.5 6 5 37.5 2 2 12.5
62.0 1 5 37.0 4 12.0 6
61.5 4 6 36.5 2 11.5
61.0 2 1 36.0 6 6 11.0 1
60.5 4 5 35.5 2 10.5
60.0 2 5 35.0 1 1 10.0
59.5 5 3 34.5 1 1 9.5
59.0 7 3 34.0 2 2 9.0
58.5 5 2 33.5 1 8.5 1
58.0 3 1 33.0 2 8.0
57.5 1 3 32.5 1 1 7.5
57.0 3 32.0 1 7.0
56.5 1 8 31.5 6.5
56.0 1 2 31.0 2 6.0 1
55.5 2 30.5 4 5.5
55.0 4 2 30.0 4 5 5.0
54.5 2 1 29.5 4.5
54.0 3 1 29.0 4.0
53.5 3 28.5 1 3 3.5
53.0 3 1 28.0 2 3.0
52.5 1 2 27.5 1 2.5
52.0 1 27.0 1 2.0
51.5 1 26.5 1 1.5
51.0 1 2 26.0 3 1.0
50.5 3 4 25.5 .5
0.0 0 2
American Mathematics Competitions
2006 AMC 10 B Results for Texas
SCORE DISTRIBUTION
score -----------grade-----------
6 7 8 9 10 unknown
---------------------------
146.5 1
137.0 1
132.0 1
130.0 1 1
127.5 2
126.5 1 1
126.0 1
125.5 2
124.0 3 1
123.0 1
122.0 1
121.5 2
119.5 2
118.5 1
117.0 1 2
116.0 1 1
115.5 1
115.0 2
114.5 1
113.5 3
112.5 2
112.0 1
111.0 2
110.0 2
109.0 1 1
108.5 1
108.0 1
107.5 5
106.5 2
106.0 1
105.0 1 2
104.0 3 3
103.0 1
102.5 2
102.0 1 4
101.5 1 1 2
100.5 1 1
100.0 1
99.5 1 2
99.0 1
98.5 1 2
98.0 1 1
97.5 1
97.0 1 3
96.5 1
96.0 3 1
95.5 2 1
95.0 1
94.5 1 2
93.5 4 1
93.0 2
92.5 2 2
92.0 5 1
91.5 1 2
91.0 1 4 1
90.0 2 4
89.5 1 2
89.0 1 2
88.5 4
88.0 1
87.5 3 3 1
87.0 2 3
86.5 1 6
86.0 2 4
85.5 3 3
85.0 2 2
84.0 1 3
83.0 2 1
82.5 1 7
82.0 1 3
81.5 1 4 4
81.0 1
80.5 2 5
80.0 1 1 4
79.5 1 2 7
79.0 3 3
78.5 2 1
78.0 5 4
77.5 1 3
77.0 3 13
76.5 1 4 2
76.0 3 2
75.5 3 7
75.0 2 6
74.5 1 4 4
74.0 2 5 1
73.5 3 3 1
73.0 2 2
72.5 3 5
72.0 9 2
71.5 2 2
71.0 7 7
70.5 2 3
70.0 4 8
69.5 2 3
69.0 2 2 1
68.5 1 4
68.0 4 1 1
67.5 4 3
67.0 3 4
66.5 2 2
66.0 4 8
65.5 5 4
65.0 4 9
64.5 1 5
64.0 5 3
63.5 4 3
63.0 3 4
62.5 5 5 11
62.0 2 4
61.5 5 4 1
61.0 1 2
60.5 5 4
60.0 5 3
59.5 6 3
59.0 7 6
58.5 3 5
58.0 1 3
57.5 4 1
57.0 2 1
56.5 2 7
56.0 1 1 1
55.5 1 1
55.0 2 4 1
54.5 1 2
54.0 3 1 1
53.5 4
53.0 3 1
52.5 2 1
52.0 1
51.5 2
51.0 3
50.5 3 4
50.0 3 2
49.5 3 3
49.0 2 2
48.5 1 3 1
48.0 1 6
47.0 5
46.5 2 2
46.0 1 1
45.5 3
45.0 3
44.5 2 2
44.0 4 2
43.5 1 1
43.0 3 3
42.5 1 1
42.0 2 6
41.5 1 1
41.0 2 3
40.5 2
40.0 3 1
39.5 2 2
39.0 1 4
38.5 3 4
38.0 2
37.5 1 3
37.0 1 3
36.5 2
36.0 8 6
35.5 2
35.0 3 1
34.5 2
34.0 1 3
33.5 1
33.0 2
32.5 1 2
32.0 1
31.0 2
30.5 1 3
30.0 2 8
28.5 1 3
28.0 3
27.5 1
27.0 1
26.5 1
26.0 3
25.0 2
24.5 1
24.0 3 9
23.5 1
23.0 1
22.5 1
21.0 1
20.5 1 1
18.5 1 1
18.0 1 11 1
17.5 2
14.5 1
12.0 2 5
11.0 1
8.5 1
6.0 1 1
2
American Mathematics Competitions
2006 AMC 10 B Results for Texas
Analysis
Table of Item Difficulty for the 2006
American High School Mathematics Examination
Tabulation of responses for all Participants
Percent of Responses
ITEM A B C D E OMITS ?
____ _____ _____ _____ _____ _____ _____ _____
1 0.71 0.63 5.29* 1.92 0.89 0.57 0.00
2 4.88* 1.02 0.35 0.38 0.28 3.09 0.00
3 7.33* 0.23 0.13 1.59 0.42 0.31 0.00
4 1.15 1.91 0.58 3.55* 1.88 0.94 0.00
5 0.87 4.59* 2.40 0.59 0.13 1.42 0.00
6 0.68 0.39 2.93 3.84* 0.51 1.64 0.00
7 2.73* 1.55 1.04 1.30 0.68 2.70 0.00
8 2.00 1.50* 0.32 1.42 0.74 4.00 0.00
9 0.19 7.14* 0.23 0.19 1.41 0.83 0.01
10 2.35* 0.65 1.77 0.30 2.69 2.25 0.00
11 0.47 0.61 2.44* 0.86 0.24 5.37 0.00
12 0.45 0.47 0.42 0.76 4.44* 3.45 0.00
13 0.84 0.47 2.28 0.69 2.69* 3.02 0.00
14 0.23 0.28 0.61 0.98* 0.19 7.71 0.00
15 0.76 0.72 1.61* 0.24 0.49 6.18 0.00
16 2.04 0.50 2.31 0.65 1.67* 2.84 0.00
17 1.75 1.31 1.31 2.55* 0.32 2.75 0.01
18 0.54 0.44 0.86 0.73 1.00* 6.44 0.00
19 0.35* 0.71 0.41 0.24 0.37 7.93 0.00
20 0.54 0.35 0.58 0.61 0.64* 7.28 0.00
21 0.60 0.42 0.83* 1.71 0.72 5.72 0.00
22 0.37 0.76 1.82 1.00* 0.17 5.88 0.00
23 0.27 0.90 0.37 0.25* 0.31 7.89 0.00
24 0.24 1.49* 0.78 0.38 0.32 6.78 0.00
25 0.27 2.05* 0.32 1.54 0.43 5.39 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
2006 AMC 12 B Results for Texas
SCORE DISTRIBUTION
GENDER
Score # Students Score # Students Score # Students
male female male female male female
150.0 125.0 100.0 1
149.5 124.5 99.5 14 6
149.0 124.0 2 1 99.0
148.5 123.5 98.5 21 15
148.0 123.0 6 1 98.0 4
147.5 122.5 1 97.5 4 4
147.0 122.0 7 2 97.0 6 1
146.5 121.5 2 96.5
146.0 121.0 96.0 14 6
145.5 120.5 4 95.5 1
145.0 120.0 95.0 36 20
144.5 119.5 3 94.5 5 1
144.0 119.0 94.0 2 5
143.5 118.5 3 2 93.5 10 3
143.0 118.0 1 93.0
142.5 117.5 92.5 23 23
142.0 117.0 6 2 92.0 5
141.5 116.5 91.5 8 8
141.0 116.0 8 2 91.0 7 2
140.5 115.5 2 90.5 2 2
140.0 115.0 13 90.0 16 9
139.5 114.5 1 1 89.5 1
139.0 114.0 2 89.0 28 24
138.5 113.5 2 88.5 2 1
138.0 1 113.0 1 88.0 3 5
137.5 112.5 10 3 87.5 8 3
137.0 112.0 87.0 2 2
136.5 111.5 9 2 86.5 9 5
136.0 1 111.0 2 1 86.0 1 2
135.5 110.5 85.5 5 8
135.0 110.0 7 2 85.0 8 1
134.5 1 109.5 84.5 7 6
134.0 109.0 10 3 84.0 13 10
133.5 1 108.5 1 83.5 2 1
133.0 108.0 15 3 83.0 21 23
132.5 4 107.5 4 82.5 2 2
132.0 107.0 82.0 11 10
131.5 106.5 9 1 81.5 8 8
131.0 1 106.0 1 81.0 6 2
130.5 105.5 15 7 80.5 10 6
130.0 3 2 105.0 2 80.0 2 1
129.5 104.5 17 5 79.5 8 5
129.0 3 104.0 4 1 79.0 1 6
128.5 103.5 78.5 10 8
128.0 103.0 10 4 78.0 7 2
127.5 2 102.5 77.5 4 2
127.0 102.0 24 10 77.0 14 11
126.5 1 1 101.5 1 76.5 3 1
126.0 101.0 22 6 76.0 5 17
125.5 4 100.5 7 2 75.5 3 1
American Mathematics Competitions
2006 AMC 12 B Results for Texas
SCORE DISTRIBUTION
GENDER
Score # Students Score # Students Score # Students
male female male female male female
75.0 4 4 50.0 1 25.0
74.5 5 4 49.5 1 1 24.5
74.0 2 1 49.0 1 1 24.0 1 3
73.5 12 11 48.5 2 23.5
73.0 3 3 48.0 1 2 23.0
72.5 3 10 47.5 2 22.5
72.0 6 14 47.0 1 2 22.0
71.5 3 1 46.5 1 21.5
71.0 10 11 46.0 1 21.0
70.5 2 1 45.5 2 20.5
70.0 3 7 45.0 1 20.0
69.5 5 6 44.5 19.5
69.0 4 11 44.0 1 19.0
68.5 3 6 43.5 2 18.5
68.0 43.0 18.0 1
67.5 3 2 42.5 1 17.5
67.0 3 2 42.0 6 17.0
66.5 2 4 41.5 1 16.5
66.0 3 3 41.0 16.0
65.5 1 3 40.5 15.5
65.0 2 5 40.0 15.0
64.5 2 3 39.5 14.5
64.0 2 3 39.0 14.0
63.5 3 38.5 4 13.5
63.0 1 3 38.0 1 13.0
62.5 2 37.5 12.5
62.0 4 2 37.0 3 12.0 1
61.5 6 36.5 11.5
61.0 1 3 36.0 3 11.0
60.5 4 35.5 1 10.5
60.0 2 3 35.0 10.0
59.5 1 2 34.5 9.5
59.0 3 3 34.0 1 9.0
58.5 1 33.5 2 8.5
58.0 1 3 33.0 4 8.0
57.5 2 32.5 7.5
57.0 2 32.0 1 7.0
56.5 1 4 31.5 1 1 6.5
56.0 1 31.0 6.0
55.5 3 30.5 5.5
55.0 1 3 30.0 2 2 5.0
54.5 1 2 29.5 4.5
54.0 1 4 29.0 4.0
53.5 1 28.5 3.5
53.0 2 3 28.0 1 3.0
52.5 1 1 27.5 2.5
52.0 1 1 27.0 3 2.0
51.5 1 26.5 1 1.5
51.0 3 26.0 1.0
50.5 1 25.5 1 .5
0.0 0 0
American Mathematics Competitions
2006 AMC 12 B Results for Texas
SCORE DISTRIBUTION
score -----------grade-----------
6 7 8 9 10 11 12 13 unknown
---------------------------
138.0 1
136.0 1
134.5 1
133.5 1
132.5 1 1 2 1
131.0 1
130.0 1 1 1 1 1
129.0 1 2
127.5 1 1
126.5 2
125.5 1 1 2
124.0 1 2
123.0 1 3 3 1
122.5 1
122.0 3 3 3
121.5 1 1
120.5 1 1 1 1
119.5 1 3 1
118.5 2 3
118.0 1
117.0 1 1 1 3 3
116.0 4 6
115.5 1 1
115.0 6 7
114.5 1 1
114.0 1 1
113.5 1 1 2
113.0 1
112.5 2 6 5
112.0 1
111.5 2 4 5
111.0 1 1 1
110.0 1 3 4 3
109.0 1 7 5 1
108.5 1
108.0 1 1 3 6 10
107.5 1 1 1 2 1
106.5 3 4 3
106.0 1
105.5 4 6 12
105.0 1 1
104.5 7 3 13
104.0 1 1 2 1
103.0 1 2 7 5
102.0 1 3 13 19 1
101.5 1
101.0 1 1 2 8 17
100.5 1 2 6
100.0 1
99.5 6 10 5
98.5 1 1 4 13 21 1
98.0 1 1 3
97.5 3 1 2 2
97.0 5 3
96.5 1
96.0 1 2 1 7 9 1
95.5 1
95.0 1 2 3 6 21 27 1
94.5 2 5 1
94.0 4 4
93.5 1 1 1 5 5
92.5 1 2 3 21 23 1
92.0 1 2 2
91.5 1 2 2 7 6
91.0 1 1 4 3
90.5 1 1 2
90.0 4 12 11
89.5 1
89.0 2 2 1 2 29 19 1
88.5 2 1
88.0 2 2 5
87.5 1 5 5
87.0 1 2 1
86.5 2 1 8 5
86.0 1 1 1
85.5 1 1 3 6 3
85.0 1 5 3
84.5 1 2 7 3
84.0 3 11 8 1
83.5 3
83.0 2 5 2 23 13
82.5 2 2
82.0 4 1 4 4 8 1
81.5 2 1 10 3
81.0 1 4 3
80.5 2 1 2 8 4
80.0 3
79.5 2 1 2 5 4
79.0 1 1 2 3
78.5 4 1 2 6 5 1
78.0 1 3 7
77.5 2 2 2
77.0 1 1 11 12
76.5 1 2 1
76.0 1 1 3 10 8
75.5 3 1
75.0 2 3 3 1
74.5 1 1 4 3
74.0 3
73.5 1 1 2 12 8
73.0 3 3
72.5 1 1 5 6 2
72.0 1 1 7 11
71.5 1 1 2
71.0 1 1 1 1 8 10
70.5 1 3
70.0 1 1 1 2 5
69.5 1 3 7
69.0 1 4 10
68.5 3 6
67.5 1 2 2
67.0 2 1 3
66.5 1 1 3 1
66.0 1 1 4
65.5 1 3
65.0 1 1 3 3
64.5 1 2 3
64.0 1 4
63.5 2 1
63.0 1 3
62.5 2
62.0 5 1
61.5 1 3 3
61.0 2 2
60.5 2 1 1
60.0 5
59.5 3
59.0 4 2
58.5 1
58.0 1 3
57.5 2
57.0 2
56.5 3 2
56.0 1
55.5 1 2
55.0 4
54.5 2 1
54.0 3 1 1
53.5 1
53.0 1 4
52.5 1 1
52.0 1 1
51.5 1
51.0 3
50.5 1
50.0 1
49.5 1 1
49.0 2
48.5 2
48.0 1 3
47.5 2
47.0 2 1
46.5 1
46.0 1
45.5 2
45.0 1
44.0 1
43.5 2
42.5 1
42.0 1 5
41.5 1
38.5 1 3
38.0 1
37.0 1 2
36.0 3
35.5 1
35.0 1
34.0 1
33.5 2
33.0 1 3
32.0 1
31.5 2
30.0 2 2
28.0 1
27.0 3
26.5 1
25.5 1
24.0 2 2
18.0 1
12.0 1
American Mathematics Competitions
2006 AMC 12 B Results for Texas
Analysis
Table of Item Difficulty for the 2006
American High School Mathematics Examination
Tabulation of responses for all Participants
Percent of Responses
ITEM A B C D E OMITS ?
____ _____ _____ _____ _____ _____ _____ _____
1 0.35 0.36 7.71* 0.88 0.38 0.32 0.00
2 7.67* 0.38 0.11 0.11 0.24 1.49 0.00
3 8.39* 0.13 0.06 1.03 0.30 0.10 0.00
4 9.16* 0.27 0.12 0.21 0.04 0.19 0.00
5 7.20* 0.69 0.36 0.18 0.18 1.39 0.00
6 0.06 8.59* 0.11 0.05 0.75 0.42 0.01
7 0.50 8.29* 0.44 0.32 0.11 0.35 0.00
8 0.17 0.27 0.14 0.40 7.13* 1.90 0.00
9 0.42 4.86* 0.32 0.59 0.30 3.50 0.00
10 3.83* 0.57 1.23 0.11 2.24 2.01 0.01
11 0.55 0.09 1.27 0.72 4.66* 2.70 0.00
12 0.42 0.50 0.43 1.33* 0.47 6.84 0.00
13 0.54 0.54 2.92* 0.16 0.40 5.44 0.00
14 0.23 0.44 1.55 2.26* 0.08 5.44 0.00
15 0.13 2.38* 0.64 0.31 0.20 6.35 0.00
16 0.24 0.16 1.49* 0.15 0.13 7.82 0.00
17 0.61 0.14 1.56* 1.20 0.39 6.11 0.00
18 0.44 0.94* 1.02 0.18 0.20 7.22 0.00
19 0.10 2.39* 0.14 1.32 0.34 5.70 0.00
20 0.08 0.25 0.34* 0.08 0.57 8.68 0.00
21 0.30 0.08 0.23* 0.07 0.09 9.22 0.00
22 0.13 0.27* 0.35 0.14 0.01 9.09 0.00
23 0.11 0.21 0.37 0.16 0.18* 8.98 0.00
24 0.15 0.18 0.09* 0.19 0.08 9.31 0.00
25 0.08 0.21* 0.15 0.28 0.08 9.21 0.00
(*) Correct Response
(?) Response the computer was unable to read due to incomplete
erasures or two answers marked in the same column