Answer:
11.57
Step-by-step explanation:
We have a simple formula to solve this:
[tex]s^2=\frac{SS}{n-1}[/tex]
where
SS is sum of squares
s^2 is the variance, and
n is the number of data points
We are given all the info to find out s^2. Hence,
[tex]s^2=\frac{SS}{n-1}\\s^2=\frac{162}{15-1}\\s^2=\frac{162}{14}=11.57[/tex]
