The probability of having a girl is identical to the probability of having a boy. In a family with seven children, what is the probability that all the children are of the same gender?	Choose the correct choice from the following choices:
A) 1/64  B) 1/9  C) 1/16  D) 1/25  E) 1/2
There are two cases. All boys and all girls   case 1. all boys.   1/2*1/2*1/2*1/2*1/2*1/2*1/2= 1/128   case 2 .all girls.   1/2*1/2*1/2*1/2*1/2*1/2*1/2=1/128   We will add the cases to get 1/64
<result>A</result>
The probability of having a girl is identical to the probability of having a boy. In a family with seven children, what is the probability that all the children are of the same gender?