Three-Child Family. Suppose you randomly select a family with three children. Assume that births of boys and girls are equally likely. What is the probability that the family has each of the following?

a. Three girls

b. Two boys and a girl

c. A girl, a boy, and a boy, in that order

d. At least one girl

e. At least two boys

use the theoretical method to determine the probability of the given outcome or event. State any assumptions that you need to make.