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The data are moderately non-symmetrical,...

The data are moderately non-symmetrical, then which one of the following empirical relationships is correct?

A

`2xx"Standard deviation"=5xx"Mean deviation"`

B

`5xx"Standard deviation"=2xx"Mean deviation"`

C

`4xx"Standard deviation"=5xx"Mean deviation"`

D

`5xx"Standard deviation"=4xx"Mean deviation"`

Text Solution

Verified by Experts

The correct Answer is:
C
We know, `(4)/(5)` standard deviation = Mean deviation
`rArr 4xx" standard deviation"=5xx" mean deviation"`
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