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One person has 2 child.At least one of them was a girl.Then the Probability that 2 of the are girl is_____
Dear Sairam,
Prob of a boy is 1/2 and girl is 1/2
according to ques. atleast one child is girl and other is also girl so
Prob = 1 * 1/2 = 1/2
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Askiitians Expert
Anil Pannikar
IIT Bombay
A Person can have a boy or a girl as a child
so therefore
sample space = { BB ,BG,GB,GG }
therefore probabilty that both are girls is 1/4
approve the answer if its right
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