Two parents have three children. They have two girls and one boy. What is the probability that the next child will be a boy?
1/2
To calculate the probability of the next child being a boy, we need to consider the possible outcomes of the gender of the next child.
Since the parents already have two girls and one boy, the possible outcomes for the gender of the next child are Boy or Girl. This means there are two equally likely outcomes, as the gender of the child is determined randomly.
Since we are only interested in the probability of having a boy, and there are two equally likely outcomes (boy or girl), the probability of the next child being a boy is 1 out of 2, or 1/2.
So, the probability of the next child being a boy is 1/2 or 50%.