# How do you find the sample variance in 89, 57, 104, 73, 26, 121, 81?

##### 2 Answers

Dec 11, 2017

#### Explanation:

Dec 11, 2017

Use the formula for Variance of a Sample (not a Population).

#### Explanation:

Many calculators, spreadsheets and even on-line calculators are available. It IS prudent to understand how to calculate it manually in every case! The formula for Variance of a Sample is:

The Mean (

In this case it is

https://www.rapidtables.com/calc/math/variance-calculator.html