- About MAA
- Membership
- MAA Publications
- Periodicals
- Blogs
- MAA Book Series
- MAA Press (an imprint of the AMS)
- MAA Notes
- MAA Reviews
- Mathematical Communication
- Information for Libraries
- Author Resources
- Advertise with MAA
- Meetings
- Competitions
- Programs
- Communities
- MAA Sections
- SIGMAA
- MAA Connect
- Students
- MAA Awards
- Awards Booklets
- Writing Awards
- Teaching Awards
- Service Awards
- Research Awards
- Lecture Awards
- Putnam Competition Individual and Team Winners
- D. E. Shaw Group AMC 8 Awards & Certificates
- Maryam Mirzakhani AMC 10 A Awards & Certificates
- Two Sigma AMC 10 B Awards & Certificates
- Jane Street AMC 12 A Awards & Certificates
- Akamai AMC 12 B Awards & Certificates
- High School Teachers
- News
You are here
Missing Title
American Mathematics Competitions
2005 AMC 10 A Results for South Dakota
GRAND STATISTICS
TOTAL NUMBER of official students taking exam: 91
Number of unofficial participants: 0
Average score of participants: 68.2
Average score for female students is: 66.9 ( 44 Students)
Average score for male students is: 70.3 ( 40 Students)
Average score for unspecified gender is 64.4 ( 7 Students)
Average score for grade 10 is: 69.8 ( 56 Students)
Average score for grade 9 is: 67.3 ( 27 Students)
Average score for grade 8 and below is: 39.0 ( 1 Student)
Average score with unknown grade: 63.0 ( 7 Students)
AIME qualifying score = 120.0 or better
Number of AIME qualifers 0
Number of schools returning results 6
Average school winning score 90.75
American Mathematics Competitions
2005 AMC 12 A Results for South Dakota
GRAND STATISTICS
TOTAL NUMBER of official students taking exam: 207
Number of unofficial participants: 0
Average score of participants: 71.6
Average score for female students is: 70.3 ( 92 Students)
Average score for male students is: 73.0 ( 104 Students)
Average score for unspecified gender is 68.3 ( 11 Students)
Average score for grade 12 is: 73.9 ( 116 Students)
Average score for grade 11 is: 68.8 ( 85 Students)
Average score for grade 10 is: 64.2 ( 3 Students)
Average score with unknown grade: 65.5 ( 3 Students)
AIME qualifying score = 100.0 or better
Number of AIME qualifers 1
Number of schools returning results 8
Average school winning score 93.69
Average school team score 267.50
American Mathematics Competitions
2005 AMC 10 B Results for South Dakota
GRAND STATISTICS
TOTAL NUMBER of official students taking exam: 6
Number of unofficial participants: 0
Average score of participants: 76.3
Average score for female students is: 76.3 ( 6 Students)
Average score for grade 10 is: 76.8 ( 4 Students)
Average score for grade 9 is: 75.5 ( 2 Students)
AIME qualifying score = 120.0 or better
Number of AIME qualifers 0
Number of schools returning results 2
Average school winning score 87.50
American Mathematics Competitions
2005 AMC 12 B Results for South Dakota
GRAND STATISTICS
TOTAL NUMBER of official students taking exam: 25
Number of unofficial participants: 0
Average score of participants: 75.0
Average score for female students is: 74.8 ( 15 Students)
Average score for male students is: 75.2 ( 10 Students)
Average score for grade 12 is: 78.2 ( 9 Students)
Average score for grade 11 is: 73.4 ( 12 Students)
Average score for grade 10 is: 80.5 ( 3 Students)
Average score for grade 9 is: 48.0 ( 1 Student)
AIME qualifying score = 100.0 or better
Number of AIME qualifers 0
Number of schools returning results 3
Average school winning score 88.33
Average school team score 219.00
2005 State AMC 12 TEAM Score Distribution
-----------------------------------------------
score A B Rank
-----------------------------------------------
295.5 1 1
286.0 1 2
273.5 1 3
268.5 1 4
265.0 1 5
261.5 1 6
256.5 1 7
251.0 1 8
243.5 1 9
233.5 1 10
162.5 1 11
2005 AMC Contest Score Distributions
-----------------------------------------------
score 12 A 12 B 10 A 10 B
-----------------------------------------------
112.0 1
104.5 1
98.5 1 1
97.5 1
96.0 1 1
95.0 5 1 1
93.5 1
92.5 2 2
91.5 3
91.0 1
90.5 1
90.0 3 1
89.5 1 1
89.0 5 1
88.0 5 1
87.0 3 2
85.5 5 1 1
85.0 1
84.5 4
84.0 3
83.5 1 1
83.0 4 2 2
82.5 1
82.0 4 2
81.0 4 1
80.5 1 1 4
80.0 1
79.5 1 1
79.0 1 1
78.5 4 3 1
78.0 2 1
77.5 4 3 2
77.0 4 2 1
76.0 1 2
75.5 3
75.0 11
74.5 3 1 1
74.0 1
73.5 1 2 1
73.0 2 3
72.5 5 1 3
72.0 3 1
71.5 6
71.0 8 1 1
70.5 1
70.0 3
69.0 2 4
68.5 2 1 2
68.0 4 1
67.5 3 2
67.0 1 2
66.5 2 1
66.0 2
65.5 8 1 1 1
65.0 8
64.5 1
64.0 3 2
63.5 1
63.0 3
62.5 3
61.5 3 1
61.0 1 1
60.5 1
60.0 2 2
59.5 1 1
59.0 2 2
58.5 1 2
58.0 1
57.0 2 2
56.5 3 1
56.0 1
55.5 2 1
55.0 1 1
54.5 1 2
54.0 1 1
53.0 1 1
52.5 1 1
52.0 3
51.5 1 2
50.5 3
50.0 2
49.5 1
49.0 1
48.0 1 1
47.0 1 2
46.0 1
45.5 1
44.5 1 1
44.0 1 1
43.0 2 1
42.0 2
41.5 1 1
41.0 1
40.5 1
39.0 1
37.5 1
28.5 1
18.0 1
American Mathematics Competitions
2005 AMC 10 A Results for South Dakota
SCORE DISTRIBUTION
GENDER
Score # Students Score # Students Score # Students
male female male female male female
150.0 125.0 100.0
149.5 124.5 99.5
149.0 124.0 99.0
148.5 123.5 98.5 1
148.0 123.0 98.0
147.5 122.5 97.5
147.0 122.0 97.0
146.5 121.5 96.5
146.0 121.0 96.0 1
145.5 120.5 95.5
145.0 120.0 95.0 1
144.5 119.5 94.5
144.0 119.0 94.0
143.5 118.5 93.5 1
143.0 118.0 93.0
142.5 117.5 92.5 2
142.0 117.0 92.0
141.5 116.5 91.5
141.0 116.0 91.0
140.5 115.5 90.5 1
140.0 115.0 90.0 1
139.5 114.5 89.5 1
139.0 114.0 89.0 1
138.5 113.5 88.5
138.0 113.0 88.0 1
137.5 112.5 87.5
137.0 112.0 1 87.0
136.5 111.5 86.5
136.0 111.0 86.0
135.5 110.5 85.5
135.0 110.0 85.0 1
134.5 109.5 84.5
134.0 109.0 84.0
133.5 108.5 83.5 1
133.0 108.0 83.0 1 1
132.5 107.5 82.5
132.0 107.0 82.0 2
131.5 106.5 81.5
131.0 106.0 81.0
130.5 105.5 80.5 2 1
130.0 105.0 80.0
129.5 104.5 79.5
129.0 104.0 79.0 1
128.5 103.5 78.5 3
128.0 103.0 78.0
127.5 102.5 77.5 1 1
127.0 102.0 77.0 1
126.5 101.5 76.5
126.0 101.0 76.0
125.5 100.5 75.5
American Mathematics Competitions
2005 AMC 10 A Results for South Dakota
SCORE DISTRIBUTION
GENDER
Score # Students Score # Students Score # Students
male female male female male female
75.0 50.0 1 25.0
74.5 1 49.5 1 24.5
74.0 49.0 24.0
73.5 1 48.5 23.5
73.0 2 1 48.0 23.0
72.5 2 1 47.5 22.5
72.0 47.0 2 22.0
71.5 46.5 21.5
71.0 1 46.0 21.0
70.5 45.5 20.5
70.0 45.0 20.0
69.5 44.5 1 19.5
69.0 2 2 44.0 1 19.0
68.5 2 43.5 18.5
68.0 1 43.0 1 18.0
67.5 2 42.5 17.5
67.0 2 42.0 17.0
66.5 1 41.5 1 16.5
66.0 41.0 16.0
65.5 1 40.5 15.5
65.0 40.0 15.0
64.5 39.5 14.5
64.0 2 39.0 1 14.0
63.5 38.5 13.5
63.0 38.0 13.0
62.5 37.5 1 12.5
62.0 37.0 12.0
61.5 36.5 11.5
61.0 1 36.0 11.0
60.5 1 35.5 10.5
60.0 2 35.0 10.0
59.5 1 34.5 9.5
59.0 1 1 34.0 9.0
58.5 1 1 33.5 8.5
58.0 33.0 8.0
57.5 32.5 7.5
57.0 1 1 32.0 7.0
56.5 1 31.5 6.5
56.0 31.0 6.0
55.5 1 30.5 5.5
55.0 1 30.0 5.0
54.5 1 29.5 4.5
54.0 1 29.0 4.0
53.5 28.5 3.5
53.0 28.0 3.0
52.5 1 27.5 2.5
52.0 27.0 2.0
51.5 2 26.5 1.5
51.0 26.0 1.0
50.5 1 2 25.5 .5
0.0 0 0
American Mathematics Competitions
2005 AMC 10 A Results for South Dakota
SCORE DISTRIBUTION
score -----------grade-----------
6 7 8 9 10 unknown
---------------------------
112.0 1
98.5 1
96.0 1
95.0 1
93.5 1
92.5 1 1
90.5 1
90.0 1
89.5 1
89.0 1
88.0 1
85.5 1
85.0 1
83.5 1
83.0 1 1
82.0 2
80.5 3 1
79.0 1
78.5 2 1
78.0 1
77.5 2
77.0 1
74.5 1
73.5 1
73.0 2 1
72.5 1 2
71.0 1
69.0 1 3
68.5 1 1
68.0 1
67.5 2
67.0 2
66.5 1
65.5 1
64.0 2
61.0 1
60.5 1
60.0 1 1
59.5 1
59.0 1 1
58.5 1 1
57.0 2
56.5 1
55.5 1
55.0 1
54.5 1 1
54.0 1
53.0 1
52.5 1
51.5 1 1
50.5 1 2
50.0 1 1
49.5 1
49.0 1
47.0 1 1
44.5 1
44.0 1
43.0 1
41.5 1
39.0 1
37.5 1
American Mathematics Competitions
2005 AMC 10 A Results for South Dakota
Analysis
Table of Item Difficulty for the 2005
American High School Mathematics Examination
Tabulation of responses for all Participants
Percent of Responses
ITEM A B C D E OMITS ?
____ _____ _____ _____ _____ _____ _____ _____
1 0.55 0.11 0.11 8.46* 0.33 0.44 0.00
2 0.00 0.22 3.30* 0.11 2.31 4.07 0.00
3 0.00 9.34* 0.22 0.22 0.00 0.22 0.00
4 0.33 0.44* 3.30 0.66 0.33 4.95 0.00
5 3.96* 0.11 5.27 0.11 0.33 0.22 0.00
6 0.22 3.85* 3.30 0.22 0.33 2.09 0.00
7 0.33 3.74* 0.77 0.44 1.10 3.63 0.00
8 1.87 0.33 3.08* 0.44 0.00 4.29 0.00
9 0.77 5.16* 0.99 0.22 0.66 2.20 0.00
10 1.32* 0.33 0.55 0.55 0.11 7.14 0.00
11 0.99 1.43* 0.33 0.66 0.00 6.59 0.00
12 0.22 0.44* 0.66 0.11 0.22 8.35 0.00
13 1.43 0.99 0.44 0.22 0.99* 5.93 0.00
14 0.88 0.44 0.33 0.88 1.32* 6.15 0.00
15 0.33 0.44 0.33 0.55 1.21* 7.14 0.00
16 0.55 0.44 0.55 1.76* 0.00 6.70 0.00
17 0.22 0.11 0.33 1.87* 0.77 6.70 0.00
18 1.54* 1.43 2.20 2.53 0.22 2.09 0.00
19 0.44 0.22 0.88 2.42* 0.88 5.16 0.00
20 0.11* 0.11 0.44 0.55 0.11 8.68 0.00
21 1.98 0.55* 0.11 0.22 0.44 6.70 0.00
22 1.10 0.22 0.44 1.65* 0.44 6.15 0.00
23 0.22 0.33 0.99* 1.10 0.88 6.48 0.00
24 0.99 0.66* 0.33 0.00 0.11 7.91 0.00
25 0.11 0.66 0.66 0.88* 0.00 7.69 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
2005 AMC 12 A Results for South Dakota
SCORE DISTRIBUTION
GENDER
Score # Students Score # Students Score # Students
male female male female male female
150.0 125.0 100.0
149.5 124.5 99.5
149.0 124.0 99.0
148.5 123.5 98.5 1
148.0 123.0 98.0
147.5 122.5 97.5 1
147.0 122.0 97.0
146.5 121.5 96.5
146.0 121.0 96.0
145.5 120.5 95.5
145.0 120.0 95.0 3 2
144.5 119.5 94.5
144.0 119.0 94.0
143.5 118.5 93.5
143.0 118.0 93.0
142.5 117.5 92.5 1 1
142.0 117.0 92.0
141.5 116.5 91.5 2 1
141.0 116.0 91.0 1
140.5 115.5 90.5
140.0 115.0 90.0 2 1
139.5 114.5 89.5
139.0 114.0 89.0 2 3
138.5 113.5 88.5
138.0 113.0 88.0 4 1
137.5 112.5 87.5
137.0 112.0 87.0 3
136.5 111.5 86.5
136.0 111.0 86.0
135.5 110.5 85.5 4 1
135.0 110.0 85.0
134.5 109.5 84.5 2 1
134.0 109.0 84.0 1 2
133.5 108.5 83.5 1
133.0 108.0 83.0 3 1
132.5 107.5 82.5 1
132.0 107.0 82.0 3 1
131.5 106.5 81.5
131.0 106.0 81.0 2 2
130.5 105.5 80.5 1
130.0 105.0 80.0 1
129.5 104.5 1 79.5 1
129.0 104.0 79.0 1
128.5 103.5 78.5 4
128.0 103.0 78.0 2
127.5 102.5 77.5 3 1
127.0 102.0 77.0 2 2
126.5 101.5 76.5
126.0 101.0 76.0 1
125.5 100.5 75.5 2 1
American Mathematics Competitions
2005 AMC 12 A Results for South Dakota
SCORE DISTRIBUTION
GENDER
Score # Students Score # Students Score # Students
male female male female male female
75.0 6 5 50.0 25.0
74.5 2 1 49.5 24.5
74.0 1 49.0 24.0
73.5 1 48.5 23.5
73.0 1 1 48.0 1 23.0
72.5 2 3 47.5 22.5
72.0 1 1 47.0 1 22.0
71.5 2 4 46.5 21.5
71.0 6 2 46.0 1 21.0
70.5 1 45.5 1 20.5
70.0 2 45.0 20.0
69.5 44.5 1 19.5
69.0 2 44.0 1 19.0
68.5 1 1 43.5 18.5
68.0 2 2 43.0 2 18.0 1
67.5 1 1 42.5 17.5
67.0 1 42.0 1 1 17.0
66.5 2 41.5 1 16.5
66.0 1 1 41.0 1 16.0
65.5 3 5 40.5 1 15.5
65.0 5 2 40.0 15.0
64.5 39.5 14.5
64.0 1 2 39.0 14.0
63.5 1 38.5 13.5
63.0 3 38.0 13.0
62.5 1 37.5 12.5
62.0 37.0 12.0
61.5 1 2 36.5 11.5
61.0 1 36.0 11.0
60.5 35.5 10.5
60.0 1 35.0 10.0
59.5 1 34.5 9.5
59.0 2 34.0 9.0
58.5 1 33.5 8.5
58.0 1 33.0 8.0
57.5 32.5 7.5
57.0 2 32.0 7.0
56.5 2 1 31.5 6.5
56.0 31.0 6.0
55.5 1 30.5 5.5
55.0 1 30.0 5.0
54.5 1 29.5 4.5
54.0 29.0 4.0
53.5 28.5 1 3.5
53.0 1 28.0 3.0
52.5 1 27.5 2.5
52.0 1 2 27.0 2.0
51.5 1 26.5 1.5
51.0 26.0 1.0
50.5 25.5 .5
0.0 0 0
American Mathematics Competitions
2005 AMC 12 A Results for South Dakota
SCORE DISTRIBUTION
score -----------grade-----------
6 7 8 9 10 11 12 13 unknown
---------------------------
104.5 1
98.5 1
97.5 1
96.0 1
95.0 1 4
92.5 2
91.5 3
91.0 1
90.0 3
89.0 2 3
88.0 1 4
87.0 2 1
85.5 2 3
84.5 2 2
84.0 1 2
83.5 1
83.0 2 2
82.5 1
82.0 1 3
81.0 2 2
80.5 1
80.0 1
79.5 1
79.0 1
78.5 4
78.0 1 1
77.5 2 2
77.0 3 1
76.0 1
75.5 1 2
75.0 3 8
74.5 1 2
74.0 1
73.5 1
73.0 1 1
72.5 2 3
72.0 1 2
71.5 3 2 1
71.0 2 6
70.5 1
70.0 2 1
69.0 2
68.5 2
68.0 3 1
67.5 1 2
67.0 1
66.5 2
66.0 1 1
65.5 6 2
65.0 1 3 4
64.0 1 2
63.5 1
63.0 1 2
62.5 1 2
61.5 1 1 1
61.0 1
60.0 1 1
59.5 1
59.0 1 1
58.5 1
58.0 1
57.0 1 1
56.5 2 1
56.0 1
55.5 2
55.0 1
54.5 1
53.0 1
52.5 1
52.0 1 2
51.5 1
48.0 1
47.0 1
46.0 1
45.5 1
44.5 1
44.0 1
43.0 2
42.0 2
41.5 1
41.0 1
40.5 1
28.5 1
18.0 1
American Mathematics Competitions
2005 AMC 12 A Results for South Dakota
Analysis
Table of Item Difficulty for the 2005
American High School Mathematics Examination
Tabulation of responses for all Participants
Percent of Responses
ITEM A B C D E OMITS ?
____ _____ _____ _____ _____ _____ _____ _____
1 0.00 0.05 0.05 9.52* 0.14 0.24 0.00
2 0.00 9.13* 0.29 0.34 0.05 0.19 0.00
3 0.34 2.56* 1.84 0.43 0.34 4.49 0.00
4 5.60* 0.19 3.86 0.05 0.00 0.29 0.00
5 0.24 5.07* 3.09 0.24 0.05 1.30 0.00
6 0.53 4.01* 0.14 0.48 0.63 4.20 0.00
7 0.72 0.29 5.65* 0.05 0.14 3.14 0.00
8 0.24 0.43 0.34 0.92* 0.24 7.83 0.00
9 1.98* 0.43 0.58 0.19 0.34 6.47 0.00
10 0.53 1.79* 0.00 0.39 0.10 7.20 0.00
11 0.92 0.43 0.29 0.48 2.03* 5.85 0.00
12 0.77 0.19 0.24 2.46* 1.11 5.22 0.00
13 0.29 0.24 0.24 1.45* 0.10 7.68 0.00
14 0.29 0.43 3.19 0.63* 0.58 4.88 0.00
15 0.14 0.34 0.97* 1.16 0.68 6.71 0.00
16 0.39 0.43 0.63 0.48* 0.39 7.68 0.00
17 1.35* 1.26 1.06 0.24 0.39 5.70 0.00
18 0.00* 0.43 0.29 0.14 0.14 8.99 0.00
19 1.11 1.55* 0.82 0.63 0.87 5.02 0.00
20 0.14 0.24 0.24 0.10 0.19* 9.08 0.00
21 0.24 0.39 0.14* 0.39 0.00 8.84 0.00
22 0.48 0.24* 0.19 0.14 0.29 8.65 0.00
23 0.72 0.39* 0.24 0.19 0.24 8.21 0.00
24 0.05 0.14* 0.24 0.29 0.10 9.18 0.00
25 0.24 0.39 0.19* 0.05 0.14 8.99 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
2005 AMC 10 B Results for South Dakota
SCORE DISTRIBUTION
GENDER
Score # Students Score # Students Score # Students
male female male female male female
150.0 125.0 100.0
149.5 124.5 99.5
149.0 124.0 99.0
148.5 123.5 98.5
148.0 123.0 98.0
147.5 122.5 97.5
147.0 122.0 97.0
146.5 121.5 96.5
146.0 121.0 96.0
145.5 120.5 95.5
145.0 120.0 95.0
144.5 119.5 94.5
144.0 119.0 94.0
143.5 118.5 93.5
143.0 118.0 93.0
142.5 117.5 92.5
142.0 117.0 92.0
141.5 116.5 91.5
141.0 116.0 91.0
140.5 115.5 90.5
140.0 115.0 90.0
139.5 114.5 89.5 1
139.0 114.0 89.0
138.5 113.5 88.5
138.0 113.0 88.0
137.5 112.5 87.5
137.0 112.0 87.0
136.5 111.5 86.5
136.0 111.0 86.0
135.5 110.5 85.5 1
135.0 110.0 85.0
134.5 109.5 84.5
134.0 109.0 84.0
133.5 108.5 83.5
133.0 108.0 83.0
132.5 107.5 82.5
132.0 107.0 82.0
131.5 106.5 81.5
131.0 106.0 81.0
130.5 105.5 80.5
130.0 105.0 80.0
129.5 104.5 79.5
129.0 104.0 79.0
128.5 103.5 78.5 1
128.0 103.0 78.0
127.5 102.5 77.5
127.0 102.0 77.0
126.5 101.5 76.5
126.0 101.0 76.0
125.5 100.5 75.5
American Mathematics Competitions
2005 AMC 10 B Results for South Dakota
SCORE DISTRIBUTION
GENDER
Score # Students Score # Students Score # Students
male female male female male female
75.0 50.0 25.0
74.5 1 49.5 24.5
74.0 49.0 24.0
73.5 48.5 23.5
73.0 48.0 23.0
72.5 47.5 22.5
72.0 47.0 22.0
71.5 46.5 21.5
71.0 46.0 21.0
70.5 45.5 20.5
70.0 45.0 20.0
69.5 44.5 19.5
69.0 44.0 19.0
68.5 43.5 18.5
68.0 43.0 18.0
67.5 42.5 17.5
67.0 42.0 17.0
66.5 41.5 16.5
66.0 41.0 16.0
65.5 1 40.5 15.5
65.0 40.0 15.0
64.5 1 39.5 14.5
64.0 39.0 14.0
63.5 38.5 13.5
63.0 38.0 13.0
62.5 37.5 12.5
62.0 37.0 12.0
61.5 36.5 11.5
61.0 36.0 11.0
60.5 35.5 10.5
60.0 35.0 10.0
59.5 34.5 9.5
59.0 34.0 9.0
58.5 33.5 8.5
58.0 33.0 8.0
57.5 32.5 7.5
57.0 32.0 7.0
56.5 31.5 6.5
56.0 31.0 6.0
55.5 30.5 5.5
55.0 30.0 5.0
54.5 29.5 4.5
54.0 29.0 4.0
53.5 28.5 3.5
53.0 28.0 3.0
52.5 27.5 2.5
52.0 27.0 2.0
51.5 26.5 1.5
51.0 26.0 1.0
50.5 25.5 .5
0.0 0 0
American Mathematics Competitions
2005 AMC 10 B Results for South Dakota
SCORE DISTRIBUTION
score -----------grade-----------
6 7 8 9 10 unknown
---------------------------
89.5 1
85.5 1
78.5 1
74.5 1
65.5 1
64.5 1
American Mathematics Competitions
2005 AMC 10 B Results for South Dakota
Analysis
Table of Item Difficulty for the 2005
American High School Mathematics Examination
Tabulation of responses for all Participants
Percent of Responses
ITEM A B C D E OMITS ?
____ _____ _____ _____ _____ _____ _____ _____
1 10.00* 0.00 0.00 0.00 0.00 0.00 0.00
2 0.00 0.00 0.00 8.33* 0.00 1.67 0.00
3 0.00 0.00 1.67 3.33* 5.00 0.00 0.00
4 0.00 0.00 1.67 3.33* 0.00 5.00 0.00
5 0.00 0.00 10.00* 0.00 0.00 0.00 0.00
6 0.00 10.00* 0.00 0.00 0.00 0.00 0.00
7 0.00 3.33* 1.67 3.33 0.00 1.67 0.00
8 6.67* 0.00 1.67 0.00 0.00 1.67 0.00
9 0.00 1.67 1.67 3.33* 0.00 3.33 0.00
10 1.67* 0.00 1.67 3.33 0.00 3.33 0.00
11 0.00 0.00 0.00 1.67 3.33* 5.00 0.00
12 0.00 3.33 0.00 0.00 0.00* 6.67 0.00
13 0.00 0.00 1.67* 3.33 0.00 5.00 0.00
14 0.00 0.00 0.00* 3.33 1.67 5.00 0.00
15 0.00 0.00 1.67 5.00* 1.67 1.67 0.00
16 1.67 0.00 1.67 0.00* 0.00 6.67 0.00
17 0.00 0.00* 0.00 1.67 0.00 8.33 0.00
18 1.67 5.00 3.33 0.00* 0.00 0.00 0.00
19 0.00 8.33* 1.67 0.00 0.00 0.00 0.00
20 1.67 0.00 3.33* 0.00 0.00 5.00 0.00
21 0.00* 0.00 0.00 0.00 0.00 10.00 0.00
22 0.00 0.00 0.00* 0.00 0.00 10.00 0.00
23 3.33 3.33 0.00* 1.67 0.00 1.67 0.00
24 0.00 1.67 0.00 0.00 0.00* 8.33 0.00
25 0.00 0.00 6.67* 0.00 0.00 3.33 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
2005 AMC 12 B Results for South Dakota
SCORE DISTRIBUTION
GENDER
Score # Students Score # Students Score # Students
male female male female male female
150.0 125.0 100.0
149.5 124.5 99.5
149.0 124.0 99.0
148.5 123.5 98.5
148.0 123.0 98.0
147.5 122.5 97.5
147.0 122.0 97.0
146.5 121.5 96.5
146.0 121.0 96.0
145.5 120.5 95.5
145.0 120.0 95.0 1
144.5 119.5 94.5
144.0 119.0 94.0
143.5 118.5 93.5
143.0 118.0 93.0
142.5 117.5 92.5
142.0 117.0 92.0
141.5 116.5 91.5
141.0 116.0 91.0
140.5 115.5 90.5
140.0 115.0 90.0
139.5 114.5 89.5
139.0 114.0 89.0
138.5 113.5 88.5
138.0 113.0 88.0
137.5 112.5 87.5
137.0 112.0 87.0 2
136.5 111.5 86.5
136.0 111.0 86.0
135.5 110.5 85.5
135.0 110.0 85.0
134.5 109.5 84.5
134.0 109.0 84.0
133.5 108.5 83.5
133.0 108.0 83.0 2
132.5 107.5 82.5
132.0 107.0 82.0
131.5 106.5 81.5
131.0 106.0 81.0 1
130.5 105.5 80.5 1
130.0 105.0 80.0
129.5 104.5 79.5 1
129.0 104.0 79.0
128.5 103.5 78.5
128.0 103.0 78.0
127.5 102.5 77.5 3
127.0 102.0 77.0 2
126.5 101.5 76.5
126.0 101.0 76.0 1 1
125.5 100.5 75.5
American Mathematics Competitions
2005 AMC 12 B Results for South Dakota
SCORE DISTRIBUTION
GENDER
Score # Students Score # Students Score # Students
male female male female male female
75.0 50.0 25.0
74.5 49.5 24.5
74.0 49.0 24.0
73.5 2 48.5 23.5
73.0 48.0 1 23.0
72.5 1 47.5 22.5
72.0 1 47.0 22.0
71.5 46.5 21.5
71.0 1 46.0 21.0
70.5 45.5 20.5
70.0 45.0 20.0
69.5 44.5 19.5
69.0 44.0 19.0
68.5 1 43.5 18.5
68.0 43.0 18.0
67.5 42.5 17.5
67.0 42.0 17.0
66.5 41.5 16.5
66.0 41.0 16.0
65.5 1 40.5 15.5
65.0 40.0 15.0
64.5 39.5 14.5
64.0 39.0 14.0
63.5 38.5 13.5
63.0 38.0 13.0
62.5 37.5 12.5
62.0 37.0 12.0
61.5 1 36.5 11.5
61.0 36.0 11.0
60.5 35.5 10.5
60.0 35.0 10.0
59.5 34.5 9.5
59.0 34.0 9.0
58.5 33.5 8.5
58.0 33.0 8.0
57.5 32.5 7.5
57.0 32.0 7.0
56.5 31.5 6.5
56.0 31.0 6.0
55.5 30.5 5.5
55.0 30.0 5.0
54.5 29.5 4.5
54.0 1 29.0 4.0
53.5 28.5 3.5
53.0 28.0 3.0
52.5 27.5 2.5
52.0 27.0 2.0
51.5 26.5 1.5
51.0 26.0 1.0
50.5 25.5 .5
0.0 0 0
American Mathematics Competitions
2005 AMC 12 B Results for South Dakota
SCORE DISTRIBUTION
score -----------grade-----------
6 7 8 9 10 11 12 13 unknown
---------------------------
95.0 1
87.0 1 1
83.0 1 1
81.0 1
80.5 1
79.5 1
77.5 1 1 1
77.0 2
76.0 1 1
73.5 2
72.5 1
72.0 1
71.0 1
68.5 1
65.5 1
61.5 1
54.0 1
48.0 1
American Mathematics Competitions
2005 AMC 12 B Results for South Dakota
Analysis
Table of Item Difficulty for the 2005
American High School Mathematics Examination
Tabulation of responses for all Participants
Percent of Responses
ITEM A B C D E OMITS ?
____ _____ _____ _____ _____ _____ _____ _____
1 9.20* 0.00 0.40 0.40 0.00 0.00 0.00
2 0.40 0.00 0.00 8.40* 0.00 1.20 0.00
3 0.00 0.40 9.20* 0.00 0.00 0.40 0.00
4 0.00 9.20* 0.40 0.00 0.00 0.40 0.00
5 5.20* 1.20 0.80 0.00 0.00 2.80 0.00
6 1.20* 2.00 0.40 0.00 0.80 5.60 0.00
7 0.00 0.00 0.80 2.00* 0.40 6.80 0.00
8 0.00 1.60 1.60* 0.00 2.80 4.00 0.00
9 1.20 5.60* 0.00 0.80 0.40 2.00 0.00
10 0.00 0.80 0.40 2.80 2.00* 4.00 0.00
11 1.60 0.80 0.40 3.60* 0.40 3.20 0.00
12 0.40 0.40 2.00 0.40* 0.00 6.80 0.00
13 0.00 1.60 0.00 0.80* 0.40 7.20 0.00
14 0.00 0.80 1.20 0.00 1.20* 6.80 0.00
15 0.00 0.00 0.40 4.80* 0.80 4.00 0.00
16 0.00 0.00 0.80 0.40* 0.40 8.40 0.00
17 0.40 0.00* 0.00 0.80 0.80 8.00 0.00
18 0.40 0.40 0.80* 0.00 0.40 8.00 0.00
19 0.00 0.80 0.00 0.40 0.00* 8.80 0.00
20 0.00 0.80 2.00* 1.20 2.00 4.00 0.00
21 0.00 0.40 0.40* 0.80 0.00 8.40 0.00
22 1.20 0.00 0.00 0.40 0.00* 8.40 0.00
23 0.00 0.00* 0.40 0.00 0.40 9.20 0.00
24 0.00* 0.80 0.40 0.00 0.40 8.40 0.00
25 0.80* 0.40 0.00 0.40 0.40 8.00 0.00
(*) Correct Response
(?) Response the computer was unable to read due to incomplete
erasures or two answers marked in the same column
