# Statistics with Lists¶

## Get Numbers¶

This retrieves all the numbers that we will use for our calculations. It will be based based on a sentinel loop pattern.

## Mean¶

Using a list of numbers, we calculate the mean (average)

## Standard Deviation¶

Given our list of numbers, we calculate their standard deviation.

$$s = \sqrt{\frac{1}{N-1} \sum_{i=1}^N (x_i - \overline{x})^2}$$

## Median¶

Given a list of numbers, calculate the media (middle) value.