# How do you find the standard deviation of a set of numbers?

##### 1 Answer

**Population standard deviation:**

**Sample standard deviation:**

#### Explanation:

This is the process to finding the **standard deviation for a sample** :

Find the mean of the set of numbers:

Subtract the mean from each number in your sample, square the difference and add:

Divide these numbers by

Square root the variance to get the standard deviation to the mean: