Solve the problem.
-Find the expected number of girls in a family of 5 children.
A) 2.25
B) 2.5
C) 3
D) 2

Question

Quizplus · Accepted Answer

The expected number of girls in a family of 5 children can be calculated assuming the probability of having a girl is 0.5 (or 50%) for each child. The expected value is calculated as the number of trials (children) multiplied by the probability of success (having a girl), which is 5 * 0.5 = 2.5.

Solve the Problem. -Find the Expected Number of Girls in a Family of a Family