Chapter 13.2, Problem 1CYP

To determine

To Find: The probability that the troy is chosen the stand on the far left and the Davian on the far right for the photograph.

Answer to Problem 1CYP

The required probability is $\frac{1}{12}$ .

Explanation of Solution

Consider the number of ways to arrange 4 friends is 24.

Then, the favourable number of ways in which the 4 friends can be arranged is 4! that is 24.

One the friend is to arrange to the far left and other to far right that is 2 out of 4 outcomes.

Then, the probability is,

  $\frac{2}{24}=\frac{1}{12}$

Thus, the required probability is $\frac{1}{12}$ .