American Mathematics Competitions
2008 AMC 10 A Results for Alabama
GRAND STATISTICS
TOTAL NUMBER of official students taking exam: 409
Number of unofficial participants: 18
Average score of participants: 61.7
Average score for female students is: 57.3 ( 169 Students)
Average score for male students is: 66.3 ( 210 Students)
Average score for unspecified gender is 53.9 ( 30 Students)
Average score for grade 10 is: 60.8 ( 242 Students)
Average score for grade 9 is: 62.9 ( 147 Students)
Average score for grade 8 and below is: 67.5 ( 11 Students)
Average score with unknown grade: 56.7 ( 9 Students)
AIME qualifying score = 117.0 or better
Number of AIME qualifers 10
Number of schools returning results 24
Average school winning score 86.69
American Mathematics Competitions
2008 AMC 12 A Results for Alabama
GRAND STATISTICS
TOTAL NUMBER of official students taking exam: 438
Number of unofficial participants: 25
Average score of participants: 66.4
Average score for female students is: 62.9 ( 159 Students)
Average score for male students is: 69.8 ( 241 Students)
Average score for unspecified gender is 60.0 ( 38 Students)
Average score for grade 12 is: 66.5 ( 237 Students)
Average score for grade 11 is: 65.3 ( 176 Students)
Average score for grade 10 is: 75.8 ( 18 Students)
Average score for grade 9 is: 83.5 ( 3 Students)
Average score with unknown grade: 57.8 ( 4 Students)
AIME qualifying score = 97.5 or better
Number of AIME qualifers 42
Number of schools returning results 24
Average school winning score 93.81
Average school team score 247.25
American Mathematics Competitions
2008 AMC 10 B Results for Alabama
GRAND STATISTICS
TOTAL NUMBER of official students taking exam: 207
Number of unofficial participants: 0
Average score of participants: 69.8
Average score for female students is: 62.5 ( 81 Students)
Average score for male students is: 72.8 ( 109 Students)
Average score for unspecified gender is 85.8 ( 17 Students)
Average score for grade 10 is: 61.7 ( 97 Students)
Average score for grade 9 is: 74.2 ( 94 Students)
Average score for grade 8 and below is: 96.6 ( 5 Students)
Average score with unknown grade: 92.9 ( 11 Students)
AIME qualifying score = 120.0 or better
Number of AIME qualifers 7
Number of schools returning results 10
Average school winning score 104.70
American Mathematics Competitions
2008 AMC 12 B Results for Alabama
GRAND STATISTICS
TOTAL NUMBER of official students taking exam: 234
Number of unofficial participants: 0
Average score of participants: 75.2
Average score for female students is: 68.7 ( 81 Students)
Average score for male students is: 79.0 ( 141 Students)
Average score for unspecified gender is 74.8 ( 12 Students)
Average score for grade 12 is: 78.5 ( 83 Students)
Average score for grade 11 is: 69.2 ( 92 Students)
Average score for grade 10 is: 80.1 ( 51 Students)
Average score for grade 9 is: 86.0 ( 3 Students)
Average score with unknown grade: 73.5 ( 5 Students)
AIME qualifying score = 97.5 or better
Number of AIME qualifers 33
Number of schools returning results 12
Average school winning score 94.25
Average school team score 267.13
2008 State AMC 12 TEAM Score Distribution
-----------------------------------------------
score A B Rank
-----------------------------------------------
361.5 1 1
348.0 1 2
343.5 1 3
330.0 1 4
328.5 1 5
327.0 1 6
325.5 1 7
321.0 1 8
315.0 1 9
306.0 1 10
303.0 1 11
297.0 1 12
285.0 1 13
279.0 2 14
277.5 1 16
273.0 1 17
268.5 1 18
267.0 1 19
256.5 1 20
243.0 1 21
241.5 1 22
235.5 1 23
228.0 1 24
226.5 1 25
223.5 1 26
216.0 1 1 27
213.0 1 29
202.5 1 30
184.5 1 31
171.0 1 32
165.0 1 33
162.0 1 34
76.5 1 35
2008 AMC Contest Score Distributions
-----------------------------------------------
score 12 A 12 B 10 A 10 B
-----------------------------------------------
144.0 1
141.0 1
133.5 1 1
132.0 1 2
129.0 1
126.0 1 2
123.0 1 1
121.5 2 1
120.0 1 1
118.5 3 1
117.0 2 1 1
115.5 1 1
114.0 4 3 2
112.5 7 1 2 1
111.0 2 1 3
109.5 2 3 3 1
108.0 1 2 2 2
106.5 5 1 2
105.0 5 1 4 2
103.5 2 5 1 2
102.0 4 3 4
100.5 2 2 2 2
99.0 4 4 2 2
97.5 3 3 2 2
96.0 6 4 4 2
94.5 5 8 4 1
93.0 7 3 5 4
91.5 2 8 2 2
90.0 5 3 7 3
88.5 8 5 5 2
87.0 5 5 1 2
85.5 4 8 8 2
84.0 9 7 4 5
82.5 6 9 5 2
81.0 8 1 3 4
79.5 5 7 3 4
78.0 9 4 9 5
76.5 12 11 7 5
75.0 7 5 8 6
73.5 9 3 8 3
72.0 5 10 10 8
70.5 18 5 5 6
69.0 9 8 10 1
67.5 12 8 5 4
66.0 20 11 7 7
64.5 15 3 10 5
63.0 9 3 10 7
61.5 9 4 6 8
60.0 17 5 14 2
58.5 13 7 7 8
57.0 11 8 4 5
55.5 11 2 8 9
54.0 14 5 11 7
52.5 17 4 9 9
51.0 13 2 9 6
49.5 8 4 6 2
48.0 14 3 18 6
46.5 7 2 20 4
45.0 7 1 9 2
43.5 9 1 9 2
42.0 7 3 17 3
40.5 6 17 2
39.0 4 3 9 1
37.5 7 2 11
36.0 5 1 13 3
34.5 3 1 4 2
33.0 2 4 1
31.5 3 5 2
30.0 6 2 6
28.5 2 1 1 1
27.0 1 5
25.5 2
24.0 1 1
22.5 1 1
21.0 1 2
19.5 2 1 1
18.0 3 1
16.5 1
15.0 1
American Mathematics Competitions
2008 AMC 10 A Results for Alabama
SCORE DISTRIBUTION
score ----gender----------- -----------grade-----------------
male female ? <=6 7 8 9 10 ?
----------------------------------------------------------------------------------------
144.0 1 1
141.0 1 1
133.5 1 1
132.0 1 2
126.0 1 1
123.0 1 1
121.5 1 1 2
120.0 1 1
114.0 3 2 1
112.5 1 1 2
111.0 1 1
109.5 1 2 2 1
108.0 1 1 1
106.5 1 1
105.0 1 3 2 2
103.5 1 1
102.0 1 3 4
100.5 2 1 1
99.0 2 1 1
97.5 2 1 1
96.0 3 1 4
94.5 2 1 1 3
93.0 1 4 5
91.5 2 2
90.0 6 1 1 3 3
88.5 5 3 2
87.0 1 1
85.5 4 4 1 4 3
84.0 4 2 2
82.5 4 1 2 3
81.0 2 1 2 1
79.5 3 2 1
78.0 6 3 1 8
76.5 2 4 3 4
75.0 6 1 3 4 1
73.5 4 4 5 3
72.0 6 4 2 8
70.5 2 3 1 1 3
69.0 5 4 3 7
67.5 3 2 2 3
66.0 6 1 3 3
64.5 6 3 1 6 3
63.0 3 7 5 5
61.5 3 3 2 4
60.0 11 2 4 9 1
58.5 4 3 5 2
57.0 2 1 2 2
55.5 5 3 3 5
54.0 7 3 3 8
52.5 4 4 3 6
51.0 6 3 4 4 1
49.5 2 3 3 2 1
48.0 7 9 5 12 1
46.5 11 9 1 5 13 1
45.0 3 5 1 4 4
43.5 4 4 6 3
42.0 6 9 1 4 12
40.5 6 6 8 9
39.0 5 4 4 5
37.5 4 7 3 8
36.0 4 6 4 7 2
34.5 2 1 2 2
33.0 1 3 1 3
31.5 2 3 5
30.0 1 5 2 4
28.5 1 1
27.0 2 2 1 4
25.5 1 1 1 1
24.0 1 1
22.5 1 1
21.0 1 1 2
19.5 1 1
18.0 2 1 2
American Mathematics Competitions
2008 AMC 10 A Results for Alabama
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 2.93 1.47 7.09 81.66* 5.13 1.71 0.00
2 47.92* 14.43 25.18 1.71 1.71 9.05 0.00
3 72.37* 3.42 3.91 1.22 2.44 16.63 0.00
4 3.91 5.62 58.92* 8.31 5.87 17.36 0.00
5 2.69 47.68* 5.13 4.89 2.93 36.67 0.00
6 2.93 4.65 4.89 26.89* 32.27 28.36 0.00
7 32.03 3.67 11.49 1.71 20.54* 30.56 0.00
8 47.43* 5.38 1.47 24.45 4.16 17.11 0.00
9 2.20 34.72* 10.51 25.43 9.78 17.36 0.00
10 1.47 32.76 7.33 1.22 44.01* 13.20 0.00
11 1.96 3.42 6.85 63.33* 9.54 14.91 0.00
12 11.74 2.93 33.01* 8.07 7.09 37.16 0.00
13 13.69 22.25 8.80 29.34* 3.18 22.74 0.00
14 5.87 6.11 4.89 25.92* 3.42 53.79 0.00
15 3.18 3.18 22.00 30.81* 6.85 33.99 0.00
16 4.65 14.67* 7.33 13.94 6.60 52.81 0.00
17 7.58 15.16* 5.62 5.38 4.16 62.10 0.00
18 5.38 9.78* 6.85 5.38 4.40 68.22 0.00
19 5.38 7.09 14.43* 4.65 4.16 64.30 0.00
20 4.16 5.38 15.65 7.09* 1.96 65.77 0.00
21 17.60* 24.21 4.89 3.91 4.16 45.23 0.00
22 7.33 3.67 22.98 23.23* 7.33 35.45 0.00
23 6.85 8.56* 11.49 4.89 3.42 64.79 0.00
24 10.76 8.07 11.00 13.20* 7.33 49.63 0.00
25 4.89 7.33 4.89* 4.89 3.18 74.82 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 A Results for Alabama
SCORE DISTRIBUTION
score ----gender----------- -----------grade-----------------
male female ? <=6 7 8 9 10 11 12 13 ?
----------------------------------------------------------------------------------------
132.0 1 1
118.5 3 2 1
117.0 1 1 1 1
115.5 1 1
112.5 4 3 7
109.5 2 2
108.0 1 1
106.5 4 1 1 4
105.0 3 2 1 4
103.5 1 1 2
102.0 4 1 3
100.5 1 1 1 1
99.0 4 1 2 1
97.5 1 2 1 2
96.0 5 1 1 4 1
94.5 3 2 3 2
93.0 4 3 1 2 4
91.5 2 2
90.0 4 1 3 2
88.5 3 4 2 6
87.0 5 1 4
85.5 3 1 1 1 1 1
84.0 7 1 1 2 6
82.5 3 3 4 2
81.0 2 4 1 5 2
79.5 3 1 2 3
78.0 6 1 2 3 4
76.5 8 2 7 5
75.0 3 4 4 3
73.5 6 3 2 7
72.0 3 2 1 2 2
70.5 12 3 2 5 10 1
69.0 5 3 1 4 4
67.5 5 4 1 5 6
66.0 14 6 8 12
64.5 8 7 1 1 13
63.0 3 4 1 4 4
61.5 3 3 5 4
60.0 6 10 2 14 1
58.5 5 7 1 3 9
57.0 6 5 6 5
55.5 7 3 5 6
54.0 7 6 6 8
52.5 10 5 1 10 5 1
51.0 4 9 2 11
49.5 4 3 7 1
48.0 5 8 5 8 1
46.5 5 1 2 5
45.0 2 4 4 3
43.5 5 3 2 7
42.0 4 3 2 5
40.5 6 4 2
39.0 3 1 2 2
37.5 4 1 4 3
36.0 2 1 5
34.5 2 1 1 2
33.0 2 2
31.5 1 2 1 2
30.0 5 3 3
28.5 1 1 1 1
27.0 1 1
24.0 1 1
22.5 1
21.0 1 1
19.5 1 1 1 1
American Mathematics Competitions
2008 AMC 12 A Results for Alabama
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 1.37 1.37 7.31 84.93* 3.88 1.14 0.00
2 92.47* 2.97 2.74 0.00 1.37 0.46 0.00
3 2.74 4.79 73.52* 6.16 2.74 10.05 0.00
4 4.57 51.83* 5.25 7.76 3.42 26.94 0.23
5 2.51 53.88* 9.13 20.09 3.88 10.50 0.00
6 52.74* 5.94 1.60 27.40 2.97 9.36 0.00
7 4.11 4.11 4.34 71.92* 6.62 8.90 0.00
8 3.88 5.94 58.68* 3.65 10.27 17.58 0.00
9 2.74 10.50 5.48 42.47* 5.02 33.79 0.00
10 9.36 25.34 11.64 42.47* 1.14 10.05 0.00
11 5.02 4.11 62.33* 5.94 4.34 18.26 0.00
12 12.79 26.71* 8.22 5.94 5.25 41.10 0.00
13 3.65 20.55* 8.22 19.18 8.22 40.18 0.00
14 11.42* 7.76 3.65 5.25 2.74 68.95 0.23
15 10.96 9.36 11.87 15.53* 10.05 42.24 0.00
16 3.42 8.22 7.53 13.24* 1.60 65.98 0.00
17 3.65 6.16 5.48 8.45* 7.76 68.49 0.00
18 3.65 4.34 9.59* 2.51 3.65 76.26 0.00
19 3.20 7.08 8.68* 4.57 1.83 74.66 0.00
20 2.74 5.02 3.65 2.28 5.25* 81.05 0.00
21 4.11 3.65 7.99 12.10* 2.74 69.41 0.00
22 3.42 6.85 8.22* 5.94 5.71 69.86 0.00
23 2.05 4.11 5.02 3.20* 1.60 84.02 0.00
24 3.88 14.61 7.76 2.97* 7.76 63.01 0.00
25 2.97 5.02 4.79 6.62* 2.28 78.31 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 10 B Results for Alabama
SCORE DISTRIBUTION
score ----gender----------- -----------grade-----------------
male female ? <=6 7 8 9 10 ?
----------------------------------------------------------------------------------------
133.5 1 1
129.0 1 1
126.0 1 1 1
123.0 1 1
121.5 1 1
120.0 1
117.0 1
114.0 1 1 2
112.5 1
111.0 3 2 1
109.5 1 1
108.0 1 1 1
106.5 1 1 1 1
105.0 2 1 1
103.5 1 1 1
100.5 2 1 1
99.0 2 2
97.5 2 2
96.0 1 1 2
94.5 1 1
93.0 2 1 3 1
91.5 2 2
90.0 2 1 1 2
88.5 2 1 1
87.0 1 1 1 1
85.5 1 1 2
84.0 3 1 2 2 1
82.5 2 1 1
81.0 3 4
79.5 3 1 1 3
78.0 4 1 5
76.5 4 1 2 3
75.0 1 4 5 1
73.5 2 2 1
72.0 3 3 1 4 2 1
70.5 4 2 3 3
69.0 1 1
67.5 3 1 2 2
66.0 4 3 2 5
64.5 2 3 5
63.0 3 3 2 4 1
61.5 5 3 4 4
60.0 2 2
58.5 3 4 3 5
57.0 4 2 3
55.5 3 6 2 7
54.0 5 2 2 5
52.5 3 6 2 7
51.0 3 3 4 2
49.5 2 2
48.0 4 2 4 2
46.5 4 1 3
45.0 1 1 2
43.5 1 1 1 1
42.0 1 1 2 1
40.5 1 1 2
39.0 1 1
36.0 1 2 1 2
34.5 2 2
33.0 1 1
31.5 2 2
28.5 1 1
19.5 1 1
18.0 1 1
15.0 1 1
American Mathematics Competitions
2008 AMC 10 B Results for Alabama
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 4.35 0.97 0.97 8.70 83.09* 1.93 0.00
2 6.76 80.19* 7.25 1.93 0.48 3.38 0.00
3 14.98 3.86 2.90 39.61* 5.80 32.85 0.00
4 9.18 15.94 68.12* 1.45 0.48 4.83 0.00
5 57.97* 4.35 3.38 1.93 2.90 29.47 0.00
6 4.35 4.83 43.96* 7.73 11.59 27.54 0.00
7 4.83 7.73 71.50* 1.93 4.35 9.66 0.00
8 1.93 7.73 57.97* 9.18 6.76 16.43 0.00
9 25.12* 5.31 4.35 9.18 4.35 51.69 0.00
10 30.43* 3.38 3.86 4.35 8.21 49.76 0.00
11 1.93 19.32* 5.31 7.25 4.83 61.35 0.00
12 78.74* 7.73 3.38 0.97 2.42 6.76 0.00
13 22.71 17.39* 6.76 1.45 3.38 48.31 0.00
14 8.70 43.96* 4.35 4.35 3.38 35.27 0.00
15 25.12* 4.83 4.83 5.31 2.90 57.00 0.00
16 23.67* 18.84 1.93 5.80 3.38 46.38 0.00
17 21.26 8.70* 17.87 9.18 7.25 35.75 0.00
18 9.18 22.71* 7.73 2.90 3.38 54.11 0.00
19 1.45 2.42 9.18 8.70 12.08* 66.18 0.00
20 4.83 43.48* 10.14 7.25 1.45 32.85 0.00
21 7.73 9.66 9.18* 6.76 2.90 63.77 0.00
22 13.04 6.28 29.47* 6.28 5.80 39.13 0.00
23 11.59 8.70* 4.35 5.80 2.42 67.15 0.00
24 6.28 8.70 10.14* 8.70 6.28 59.90 0.00
25 15.46 15.94* 9.66 6.28 4.35 48.31 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 Alabama
SCORE DISTRIBUTION
score ----gender----------- -----------grade-----------------
male female ? <=6 7 8 9 10 11 12 13 ?
----------------------------------------------------------------------------------------
118.5 1 1
117.0 1 1
115.5 1 1
114.0 2 2 1 3
112.5 1 1
111.0 2 2
109.5 3 1 1 1
108.0 2 2
105.0 1 1
103.5 4 1 1 4
102.0 3 1 1 1
100.5 2 1 1
99.0 2 2 1 1 2
97.5 2 1 1 2
96.0 3 1 2 1 1
94.5 7 3 3 1 1
93.0 1 2 1 2
91.5 5 2 4 4
90.0 3 1 1 1
88.5 5 2 2 1
87.0 4 1 3 1 1
85.5 4 3 3 3 2
84.0 4 2 3 1 3
82.5 7 1 4 3 2
81.0 1 1
79.5 5 2 3 2 2
78.0 3 1 1 1 2
76.5 5 5 3 4 3 1
75.0 2 2 5
73.5 1 2 3
72.0 5 5 1 5 4
70.5 3 1 1 2 1 1
69.0 5 1 2 5 1
67.5 6 2 3 3 2
66.0 7 4 1 7 3
64.5 1 2 1 1 1
63.0 3 2 1
61.5 4 4
60.0 3 2 1 4
58.5 4 3 2 4 1
57.0 5 3 2 3 2 1
55.5 2 1 1
54.0 2 3 3 2
52.5 2 2 2 2
51.0 1 1 1
49.5 1 3 3 1
48.0 2 2 1
46.5 2 1 1
45.0 1 1
43.5 1 1
42.0 2 1 2 1
39.0 3 2 1
37.5 2 2
36.0 1 1
34.5 1 1
30.0 1 1 2
28.5 1 1
16.5 1 1
American Mathematics Competitions
2008 AMC 12 B Results for Alabama
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 0.85 0.85 1.71 11.54 83.76* 1.28 0.00
2 2.99 84.19* 6.41 1.71 1.28 3.42 0.00
3 3.42 4.27 85.04* 1.71 0.43 5.13 0.00
4 1.28 1.71 0.43 86.32* 2.56 7.26 0.43
5 1.71 3.42 76.50* 2.99 3.42 11.97 0.00
6 87.61* 5.13 1.71 0.43 2.14 2.99 0.00
7 83.76* 1.71 0.85 0.00 0.85 12.82 0.00
8 2.56 1.71 66.67* 8.12 5.56 15.38 0.00
9 47.86* 6.41 1.71 2.56 4.27 37.18 0.00
10 2.56 46.58* 14.53 1.28 3.42 31.62 0.00
11 28.21* 5.56 2.56 8.55 26.50 28.63 0.00
12 13.25 39.74* 7.69 3.42 7.69 28.21 0.00
13 2.56 26.92* 4.27 5.98 0.85 59.40 0.00
14 8.97 8.55 43.16* 5.13 3.85 30.34 0.00
15 2.99 4.70 15.81* 5.13 8.12 63.25 0.00
16 17.52 20.09* 4.27 5.98 1.28 50.85 0.00
17 2.14 4.70 5.13* 5.13 1.71 81.20 0.00
18 2.14 5.56 5.98 8.12 19.66* 58.55 0.00
19 5.13 5.56* 5.98 2.99 2.99 77.35 0.00
20 21.79 15.81* 9.40 5.13 2.99 44.87 0.00
21 3.42 2.99 3.85 3.42 1.71* 84.62 0.00
22 2.56 5.98 8.55 5.13 4.70* 73.08 0.00
23 6.84* 2.99 4.27 6.41 0.00 79.49 0.00
24 0.43 4.70 3.42* 1.71 1.71 88.03 0.00
25 0.43 2.56* 5.13 3.42 2.14 86.32 0.00
(*) Correct Response
(?) Response the computer was unable to read due to incomplete
erasures or two answers marked in the same column