# Probability Introduction

**Probability (or chance)** is the percentage of times one expects a certain outcome when the process is repeated over and over again under the same conditions.

The probability (or chance) of an outcome is equal to: the # of that outcome / total # of possibilities

One classic problem that involves probability is called the Monty Hall Problem.

# Example Walk-Throughs with Worksheets

### Video 1: Basic Probability

Follow along with the worksheet to work through the problem: