Interview question: baby boys and baby girls


In a country in which people only want boys, every family continues to have children until they have a boy. If they have a girl, they have another child. If they have a boy, they stop. What is the proportion of boys to girls in the country?

Answer next week.

EDIT 4/26: Answer.

Comments (1)

  1. Barbie says:

    This one is funny. I like it because you can answer it without any math whatsoever: the event is random, and you can’t control random.

    It applies to _any_ way to try to skew the distribution.

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