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Step Deviation Method

Mean method a...

Question

_________, Mean method and Assumed Mean method, these are the three methods to find the standard deviation of grouped data.

A

Direct method

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B

Indirect method

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C

Deviation method

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D

Long method

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Solution

The correct option is A Direct method
There are three methods to calculate the standard deviation for grouped data, Direct method, Mean method and Assumed Mean method.

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