Chapter 12, Problem 124CUR

To determine

To find: The probability that the computer generates a 12 or a multiple of 3.

Answer to Problem 124CUR

The simplified answer is $\frac{6}{20}$ .

Explanation of Solution

Formula used:

Formula used is,

  $\text{probability=}\frac{\text{number of favourable events}}{\text{number of outcomes}}$

Calculation:

  $\begin{array}{l}To\text{ solve the equation;}\\ \text{outcomes = }\left(1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20\right)\\ \text{favourable event = }\left(3,6,9,12,15,18\right)\\ \text{probability = }\frac{\text{number of favourable events }}{\text{no of outcomes}}\\ \text{probability}=\frac{6}{20}\end{array}$