Questions
A father has 3 children with at least one boy. The probability that he has 2 boys and 1 girl is
detailed solution
Correct option is B
Consider the following events:A: Father has at least one boy.B: Father has 2 boys and one girlThen,A = one boy and2 girls, 2 boys and one girl, 3 boys and no girlA∩B = 2 boys and one girlNow, the required probability is=P(A/B)=P(A∩B)P(A)=13Similar Questions
A couple has 3 children and it is known that atleast one of them is a boy. Then the probability that the couple will have exactly two boys is
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