Question

In a series of observations, S.D. = 5 and mean is 20, then coefficient of variation is ______.

विकल्प

• 4

• `1/4`

• 25

• 12.5

Answer 1

In a series of observations, S.D. = 5 and mean is 20, then coefficient of variation is 25.

Explanation:

C.V. = `sigma/|barx| xx 100`

`= 5/20 xx 100` = 25