Question

assuming boys and girls are equally likely, find the probability of a couple having a baby girl when their third child is born, given that the first two children were both girls. the probability is (type an integer or a simplified fraction )

Explanation:

Step1: Recall probability concept

The gender of each child is an independent event. The outcome of the first - two children's genders does not affect the gender of the third child.

Step2: Determine probability

Since boys and girls are equally likely, the probability of having a girl in a single - birth is $\frac{1}{2}$.

Answer:

$\frac{1}{2}$