Solve the problem.
-If 5 apples in a barrel of 25 apples are rotten, what is the expected number of rotten apples in a Sample of 2 apples?
A) 0.63
B) 1
C) 0.4
D) 0.33

Question

Quizplus · Accepted Answer

The expected number of rotten apples in a sample of 2 apples can be calculated using the formula for expectation in probability. With 5 rotten apples out of 25, the probability of picking a rotten apple is 5/25 or 1/5. For a sample of 2 apples, the expected number of rotten apples is 2*(1/5) = 2/5 = 0.4.

Solve the Problem. -If 5 Apples in a Barrel of 25 Apples Are