Chapter 13.3, Problem 20PPS

To determine

To explain:

The event with $33\%$ probability for each model

Answer to Problem 20PPS

In this traffic light three events that have probability of occurring the probability of the light is red is $33\%$ , the probability of the traffic light is yellow is $33\%$ , or the probability of the traffic light is green same as first two.

Explanation of Solution

Given information:

  

Normally, all the traffic light consists of $3$ circular sections: a red, a yellow and a green circle. All of the segments are equal size, the probability that one circle light up is equal to $33\%$ since each circle represents $33\%$ of the total traffic light outcomes.

In this traffic light three events that have probability of occurring the probability of the traffic light is red is $33\%$ , the probability of light is yellow is $33\%$ , or the probability of the light is green same as first two.