Question

Given a family with three ​children, find the probability of the event. The oldest two are boys, given that the oldest is a boy. The probability that the oldest two are boys, given that the oldest is a boy is?

Answer 1

Answer:

1/2

Step-by-step explanation:

List the possibilities

b b g

b b b

b g b

b g g          two out of four have oldest two boys    2/4 = 1/2