Solve the Problem $\frac { 1 } { 2 }$ What Is the Probability of Having at Least Four

Multiple Choice

Solve the problem.
-Suppose that a family has 5 children and that the probability of having a girl is $\frac { 1 } { 2 }$ . What is the probability of having at least four girls?

A) $0.3125$
B) $0.1563$
C) $0.1875$
D) $0.0313$