Solve the Problem $\frac { 1 } { 2 } \text {. What is the }$

Multiple Choice

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

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