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A FAMILY HAS 2 CHILDREN. FIND THE PROBABILITY THAT BOTH ARE BOYS IF IT IS KNOWN THAT i)atleast 1 is boy ii)elder child is boy
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A FAMILY HAS 2 CHILDREN. FIND THE PROBABILITY THAT BOTH ARE BOYS IF IT IS KNOWN THAT

i)atleast 1 is boy
ii)elder child is boy

User Zorkzyd
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8.5k points

1 Answer

5 votes
1/2 because if there's at least 1 boy that same boy could be the elder child so 1 could be a boy and the other a girl younger than him
User Yevgeniy
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