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Question

An instructor made a frequency table of the scores his students got on a test
Score Frequency
30-under 40 1
40-under 50 4
50-under 60 5
60-under 70 10
70-under 80 20
80-under 90 10
90-under 100 5

Approximately what percent of students got more than 70?
a) 36
b) 20
c) 50
d) 10
e) 64

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