Out of the families having 3 children,a family is chosen random.Find the probability that the family has (a) at most one girl...
A family has three children.
Total outcomes = GGG , GGB ,GBG ,BGG, BBB ,BBG, BGB ,GBB = 8
At most one girl mean no girl or 1 girl
So, favourable outcomes = BBB, BBG, BGB, GBB = 4
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