Question

A spinner with 10 equally sized slices is shown below. (2 slices are red, 4 are blue, and 4 are yellow.) The dial is spun and stops on a slice at random. What is the probability that the dial stops on a slice that is not red?Write your answer as a fraction or a whole number.

Answer 1

We will have the following:

Since there are 8 slices that are not red, the probability will be given by:

$p=\frac{8}{10}\Rightarrow p=\frac{4}{5}\Rightarrow p=0.8$

So, the probability will be of 4/5, that is 80%.