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Assume that each bron child is equally l...

Assume that each bron child is equally likely to be a boy or girl. If two families have two children each, then the conditional probality that all children are girls given that at least two are girls is :

A

`(1)/(11)`

B

`(1)/(10)`

C

`(1)/(12)`

D

`(1)/(17)`

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The correct Answer is:
A
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