alleryStart learning →Classes 0-10, 10-20, 20-30, 30-40 have frequencies 5, 8, 12, 7. How many values are below 30?
A13
B32
C20
D25
Answer & Solution
Correct answer: D. 25
Below 30 means the first three classes: 5 + 8 + 12 = 25.
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