[" Q.11.A family has "2" children.Find t...

[" Q.11.A family has "2" children.Find the probability that both are boys,if it is known that "],[" (i) at least one of the children is a boy,"],[" (ii) the elder child is a boy."]

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[" Q.11.A family has "2" children.Find the probability that both are boys,if it is known that "],[" (i) at least one of the children is a boy,"],[" (ii) the elder child is a boy."]

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