S09 Exam 1 histogram and letter-grade cutoffs

The exam was out of 55 points. The first two columns indicate the histogram (number of students in each score range).

The letter grade cutoffs indicate what you would get for the course if it was based solely on this exam. 

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Score   Number of  Letter grade 
range   students   cutoffs
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50-55       3
45-49       3
40-44       3      A ≥ 44 41
35-39       8
30-34       5      B ≥ 34 31
25-29       4
20-24       6      C ≥ 24
15-19       0      D ≥ 15
 0-14       5
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