Question

If SS= 162 from a sample of 15 data, find s^2

Answer 1

11.57

Explanation:

We have a simple formula to solve this:

`s^2=(SS)/(n-1)`

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,

`s^2=(SS)/(n-1)\\s^2=(162)/(15-1)\\s^2=(162)/(14)=11.57`