# 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 workseet to work through the problem:

# Practice Questions

**Q1**: To half the simulation error of 4 die rolls, we would need 12 more die rolls. To half the simulation error again, we would need how many additional die rolls?

**Q2**: To half the simulation error of 10 rolls, how many more die would you need to roll?

**Q3**: How can we minimize simulation error?