SOLUTION: . If a family has three children, find the probability that it has two girls, given that at least one child is a boy.

Algebra ->  Probability-and-statistics -> SOLUTION: . If a family has three children, find the probability that it has two girls, given that at least one child is a boy.       Log On


   



Question 348529: . If a family has three children, find the probability that it has two girls, given that at least one child is a boy.
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
If a family has three children, find the probability that it has two girls, given that at least one child is a boy.
-----------------
P(2g|b) = P(2g and b)/P(b) = (3/8)/(7/8) = 3/7
===================
Cheers,
Stan H.