First slide

Introduction to statistics

Question

In a series of observations, coefficient of variation is 16 and mean is 25, find the variance

Moderate

A

4
B

8
C

12
D

16

Solution

We have,
$\frac{σ}{\bar{X}} \times 100 = 16$ and $\bar{X} = 25 \Rightarrow σ = 4 \Rightarrow σ^{2} = 16$

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