Question

A committee of three is to be formed from. 3 boys and three girls. Find the probability of the following events

Answer 1

following cases are possible

BBB                        

BBG

BGB

GBB

BGG

GBG

GGB

GGG

Total conditions are 8

Now, 1) at least 2 girls i.e. a group having 2 or more girls

P(E) = 4/8 = 1/2

2) at most one girl i.e. a group must contain 1 girl or 0

P(E) = 4/8 = 1/2

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