Understanding Probability

Probability is the likelihood or chance of something happening.

For example: Suppose we select a marble without looking.

Let's find how likely it is that we will pick a red one.

First count the total number of marbles.

There are 7 marbles.

Out of 7 marbles, 5 are green and 2 are red.

Since, there are more of green marbles than red marbles, so, it is less likely that you will pick a red marble.