Suppose the standard deviation is 13.1. What is the variance?
Variance is the square of standard deviation.
To find the variance, we need to square the standard deviation.
The formula for variance is:
Variance = (Standard Deviation)^2
So, to find the variance when the standard deviation is 13.1, we can calculate it as follows:
Variance = (13.1)^2
Variance = 13.1 * 13.1
Variance = 171.61
Therefore, the variance is 171.61.