SOLUTION: A family has three children , if first child is a boy .What is the probability that family has least two boys ?
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Question 483549: A family has three children , if first child is a boy .What is the probability that family has least two boys ? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! A family has three children , if first child is a boy .What is the probability that family has least two boys ?
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P(at least one additional boy) = 1 - P(2 girls)
= 1 - (1/2)^2
= 3/4
Cheers,
Stan H.
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