Question

A couple have 2 children if older is a boy,what is the probablity that they have two boys

Answer 1

The other child may be a boy or child..Probability of boy is 1 out of 2 So P(E) is 1/2

Answer 2

Hi friend,

Here is your answer,
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If a couple has older child as a boy.
The younger will be a boy or girl.

P(E=both boys) =    Number of  possible outcomes   
                              Total number of outcomes

                          =   1 
                               2
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