SOLUTION: in a family of 3 children, find the probability that all the children will be girls if it is known that at least one of the children is a girl
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Question 963322: in a family of 3 children, find the probability that all the children will be girls if it is known that at least one of the children is a girl
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
If you know one of the children is a girl, then the potential other outcomes for children is,
BB
BG
GB
GG
So then,
.
.
.
or by using conditional probability,
P(B|A)=P(A_and_B)/P(A)
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