How To: Use a spinner to solve math probablity problems

In this lesson we will learn how to solve probability problems involving a spinner.

A probability measures the likelihood of a certain event. It always ranges between 0 and 1. The following formula can be used to find the probability of a particular event:

P(event) = the number of favorable outcomes / the total number of outcomes

As you can see probabilities are fractions, but they can also be expressed as decimals or percents.