Chapter 13.4, Problem 29STP

To determine

To calculate:

Probability that a coin selected from the jar at random will be a dime.

Answer to Problem 29STP

Probability that a coin selected from the jar at random will be a dime is $0.78$ .

Explanation of Solution

Given information:

 A. $0.35$

 B. $0.4$

 C. $0.78$

 D. $0.5$

For finding the probability that a coin selected from the jar at random will be a dime.

In a jar, it consists of $25$ dimes and $7$ quarters.

Total number of dimes and quarters is ,

  $\begin{array}{l}=25+7\\ =32\end{array}$

So, the probability of coin is,

  $\begin{array}{l}=\frac{P\left(A\right)}{P\left(B\right)}\\ =\frac{25}{32}\\ =0.78\end{array}$

Therefore, option (C) is correct.