Concept explainers
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
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,
Thus, the required probability is
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