What is the probability of a couple having four children in the following order: girl,girl,girl,boy?
A).0625
B).125
C).25
D).50

Question

Quizplus · Accepted Answer

The probability of having a girl on the first child is 0.5, the second child is also 0.5, the third child is also 0.5, and the fourth child is 0.5. Therefore, the probability of having four children in the order girl, girl, girl, boy is 0.5 x 0.5 x 0.5 x 0.5 = 0.0625 or 6.25%.

What Is the Probability of a Couple Having Four Children