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It's the difference between the situation where a child is chosen and then the gender announced, and the situation where a girl is found, and then the gender an
by randallsquared 18y ago
It's the difference between the situation where a child is chosen and then the gender announced, and the situation where a girl is found, and then the gender announced. If you started out saying "Is one of them a girl?", and only continuing if the answer is yes, then the probability changes.