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Question: If the probabilities of boy and girl to be born are same, then in a 4 children family the probabilit...

If the probabilities of boy and girl to be born are same, then in a 4 children family the probability of being at least one girl, is

A

14/16

B

15/16

C

1/8

D

3/8

Answer

15/16

Explanation

Solution

Required probability is 1 – P(no girl) = 1 - (12)4=1516\left( \frac { 1 } { 2 } \right) ^ { 4 } = \frac { 15 } { 16 }