There were 8 questions, each worth 10 points. (Students chose which
8 of 10 questions to answer.)
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Twenty-four students took the exam.
The average was 64.4, the median 67.
The standard deviation was 6.5.
The high grade was 77, the low grade was 43.
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Grade histogram:
40-44 X
45-49 X
50-54
55-59 X X X
60-64 X X X X
65-69 X X X X X X X X X X X
70-74 X X X
75-80 X
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The average grade for each question was 8.0, with a standard
deviation of 0.9.
Per-question breakdown:
# Avg Stddev Min Max Attempt histogram
1 9.5 0.7 8 10 XXXXXXXXXXXXXXXXXXXXXXX
2 7.8 2.5 3 10 XXXXXXXXXXXXXXXXXXXX
3 7.8 1.1 6 10 XXXXXXXXX
4 8.2 2.5 2 10 XXXXXXXXXXXXXXXXXXXXXX
5 8.8 1.5 5 10 XXXXXXXXXXXXXXXXX
6 7.1 2.2 4 10 XXXXXXXXXXXXXX
7 9.2 1.3 5 10 XXXXXXXXXXXXXXXXXXXXXXX
8 6.9 2.9 2 10 XXXXXXXXXXXXXXXXXXXXXXX
9 7.4 1.8 2 10 XXXXXXXXXXXXXXXXXXX
10 7.3 2.3 4 10 XXXXXXXXXXXXXXXXXXXXXX
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Per-question breakdown of the top four exams:
(The top four exams scored between 70 and 74.)
Per-question breakdown:
# Avg Min Max Attempt histogram
1 9.5 8 10 X X X X
2 9.5 9 10 X X
3 10 10 10 X
4 10 10 10 X X X X
5 10 10 10 X X X
6 6.7 4 10 X X X
7 9.3 7 10 X X X X
8 8.8 6 10 X X X X
9 9.3 9 10 X X X
10 8.8 7 10 X X X X
Question 3 was, in general, unloved, but questions 6 and 8 were
the toughest.