Question 68168: A tree diagram shows the possibilites for boys and girls in a two-child family. If a family has 2 children, what are the chances that one child is a girl and one child is a boy?
A 1/4
B 1/3
C 1/2
D 3/4
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! A tree diagram shows the possibilites for boys and girls in a two-child family. If a family has 2 children, what are the chances that one child is a girl and one child is a boy?
Sample space={bb,bg,gb,gg}
Prob(a boy and a girl)= 2/4=1/2
Cheers,
Stan H.
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