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Quantitative Aptitude :: Probability - Discussion

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Choose the correct option.

There are 11 boys in a family. Youngest child is a boy. Probability is 1 that of all are boys out of?

A2

B2!

C2048

D1024

Answer: Option (Login/Signup)

Show Explanation

Answer: 1/1024



Solution: 11 boys, given youngest one is the boy

Probability of a boy or girl is (1/2)

Probability of finding remaining 10 children to get a boy is-

so (1/2)^10=1/1024.

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