What does probability do?

Answer 1

Probability tells you the chance that something will happen.

For example:

There are 3 red tiles, 5 green tiles and 2 pink tiles in a bag. What is the probability of picking a red tile?

First you find out how many red tiles there are. There are 3 red tiles. Then, you add up all the tiles. Altogether there are 10 tiles. So, there is a 3/10 probability that you will pick a red tile.