Question

A researcher analyzed the results of her data and calculated the standard deviation of scores at 3.5. what is the variance? 7.00 11.00 12.25 it is impossible to determine the variance based on the information given.

Answer 1

A researcher analyzed the results of her data and calculated the standard deviation of scores at 3.5. what is the variance?

Solution: We are given the standard deviation of scores = 3.5

We know that the variance is the square of the standard deviation.

Therefore, the variance is:

$Variance = (Standard-deviation)^{2}$

                       $=3.5^{2}$

                       $=12.25$

Therefore, the variance of the scores is 12.25