To the right are the outcomes that are possible when a couple has three children. Assume that boys and girls are equally? likely, so that the eight simple events are equally likely. Find the probability that when a couple has three? children, there are exactly 3 girls.

To the right are the outcomes that are possible when a couple has three children. Assume that boys and girls are equally likely, so that the eight simple events are equally likely. Find the probability that when a couple has three 1st 2nd 3rd children, there are exactly 3 girls boy - boy - boy boy - boy - girl boy - girl - boy boy - girl - girl girl - boy - boy girl - boy - girl girl - girl - boy girl - girl - girl What is the probability of exactly 3 girls out of three children? (Type an integer or a simplified fraction.)