Question

What is the probability that a family randomly selected from the street has at least four cars?

Answer 1

Answer:

Step-by-step explanation:

Sample space: GG, GB, BG, BB. I then crossed out BG because it's the same as GB because order doesn't matter here. And because we know one is a girl, there leaves two possibilities left. If the other is a boy, the probability should be 1/2, much like how they deduced it Finding probability of other child also being a boy.