Chapter 13.4, Problem 20HP

To determine

To explain:

Reason for predicting the probability of outcome $C$ .

Answer to Problem 20HP

Reason for predicting the probability of outcome $C$ is because the blue section can be thought of as two combined $120°$ sections representing $A$ and $B$ .

Explanation of Solution

Given information:

  

A spinner is dividing in to sections a red $120°$ section and blue $240°$ section.

The spinner could be used in a simulation for predicting the probability of an outcome $C$ occurring when there are three equally likely outcomes $A,B$ and $C$ , because the blue section can be thought of as two combined $120°$ sections representing $A$ and $B$ .

Since it is only desired for predicting the probability of $C$ , this is only section which requires to be separate from the $A$ and $B$ sections when recording the occurrence of the outcomes.