Question

if the standard deviation of a data set is 4, what is the variance? 12/13 4 16 2

Explanation:

Step1: Recall the formula

The relationship between variance ($\sigma^{2}$) and standard - deviation ($\sigma$) is $\sigma^{2}=\sigma\times\sigma$.

Step2: Substitute the given value

Given $\sigma = 4$, then $\sigma^{2}=4\times4 = 16$.

Answer:

16