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Frequency Table & Its Average

The relative ...

Question

The relative frequency of students working $9$ hours or less is

A

2

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B

40

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C

45

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D

Can not be determined from the information given.

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Solution

The correct option is B $40$
The relative frequency of students working $9$ hours or less lie in the $0 - 9$ hours group.
So, total number of students $= 40$ .

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