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Step Deviation Method

If Mean devia...

Question

If Mean deviation of a data is 16 find Quartile deviation __________.

A

10.6

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B

12.3

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C

11.9

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D

13.35

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Solution

The correct option is D 13.35
Mean deviation is 4/5 th of quartile deviation. Therefore,
Quartile deviation = (5/4) * 16
= 5 * 4
= 20

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