Sheet1
| 21-241: Matrix Algebra |
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| 2013 Spring |
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Course Statistics |
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Cumulative Average |
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Cumulative Statistics |
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Mean by Recitation |
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Grade Cutoffs |
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Grade Distribution |
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Min (%) |
15.77 |
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Section A |
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A cutoff |
84.25 |
=M + 0.6 Sd |
A's |
32 |
26% |
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Q1 (%) |
69.55 |
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Mean |
76.3 |
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Section B |
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B cutoff |
73.25 |
=M - 0.24 Sd |
B's |
47 |
39% |
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Q2 (%) |
78.9 |
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Sdev |
13.2 |
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Section C |
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C cutoff |
63.25 |
=M - 0.99 Sd |
C's |
28 |
23% |
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Q3 (%) |
84.85 |
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Section D |
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D cutoff |
49.25 |
=M - 2.05 Sd |
D's |
8 |
7% |
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Max (%) |
96.81 |
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R's |
6 |
5% |
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Homework Average |
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Homework Statistics |
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Mean by Recitation |
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Grade Cutoffs |
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Grade Distribution |
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Min (%) |
0 |
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Section A |
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A cutoff |
85 |
=M - 0.22 Sd |
A's |
97 |
80% |
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Q1 (%) |
86.65 |
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Mean |
88.19 |
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Section B |
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B cutoff |
75 |
=M - 0.9 Sd |
B's |
11 |
9% |
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Q2 (%) |
92.9 |
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Sdev |
14.73 |
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Section C |
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C cutoff |
65 |
=M - 1.58 Sd |
C's |
5 |
4% |
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Q3 (%) |
96.64 |
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Section D |
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D cutoff |
50 |
=M - 2.6 Sd |
D's |
5 |
4% |
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Max (%) |
100 |
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R's |
3 |
2% |
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Exam #1 |
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Exam Statistics |
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Mean by Recitation |
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Grade Cutoffs |
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Grade Distribution |
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Min (%) |
37 |
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Section A |
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A cutoff |
90 |
=M + 0.25 Sd |
A's |
68 |
56% |
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Q1 (%) |
80 |
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Mean |
86.24 |
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Section B |
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B cutoff |
80 |
=M - 0.43 Sd |
B's |
22 |
18% |
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Q2 (%) |
92 |
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Sdev |
14.81 |
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Section C |
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C cutoff |
70 |
=M - 1.1 Sd |
C's |
13 |
11% |
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Q3 (%) |
97 |
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Section D |
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D cutoff |
60 |
=M - 1.78 Sd |
D's |
9 |
7% |
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Max (%) |
100 |
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R's |
9 |
7% |
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Exam #2 |
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Exam Statistics |
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Mean by Recitation |
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Grade Cutoffs |
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Grade Distribution |
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Min (%) |
10 |
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Section A |
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A cutoff |
70 |
=M + 0.49 Sd |
A's |
36 |
30% |
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Q1 (%) |
51.5 |
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Mean |
61.63 |
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Section B |
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B cutoff |
60 |
=M - 0.1 Sd |
B's |
27 |
23% |
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Q2 (%) |
62 |
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Sdev |
17.01 |
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Section C |
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C cutoff |
50 |
=M - 0.69 Sd |
C's |
31 |
26% |
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Q3 (%) |
72 |
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Section D |
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D cutoff |
35 |
=M - 1.57 Sd |
D's |
15 |
13% |
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Max (%) |
98 |
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R's |
10 |
8% |
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Exam #3 |
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Exam Statistics |
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Mean by Recitation |
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Grade Cutoffs |
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Grade Distribution |
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Min (%) |
12 |
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Section A |
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A cutoff |
85 |
=M + 0.71 Sd |
A's |
29 |
24% |
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Q1 (%) |
60.75 |
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Mean |
72.38 |
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Section B |
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B cutoff |
70 |
=M - 0.14 Sd |
B's |
37 |
31% |
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Q2 (%) |
72 |
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Sdev |
17.73 |
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Section C |
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C cutoff |
60 |
=M - 0.7 Sd |
C's |
24 |
20% |
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Q3 (%) |
84.25 |
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Section D |
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D cutoff |
45 |
=M - 1.55 Sd |
D's |
23 |
19% |
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Max (%) |
100 |
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R's |
7 |
6% |
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Final Exam |
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Exam Statistics |
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Mean by Recitation |
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Grade Cutoffs |
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Grade Distribution |
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Min (%) |
36.5 |
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Section A |
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A cutoff |
90 |
=M + 0.68 Sd |
A's |
24 |
24% |
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Q1 (%) |
71 |
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Mean |
79.3 |
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Section B |
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B cutoff |
80 |
=M + 0.04 Sd |
B's |
39 |
39% |
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Q2 (%) |
84 |
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Sdev |
15.58 |
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Section C |
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C cutoff |
70 |
=M - 0.6 Sd |
C's |
11 |
11% |
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Q3 (%) |
90 |
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Section D |
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D cutoff |
55 |
=M - 1.56 Sd |
D's |
15 |
15% |
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Max (%) |
100 |
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R's |
10 |
10% |