Conditional Probabilityhard
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A box contains 5 red and 3 blue balls. You draw balls one by one without replacement until a blue ball is drawn. Given that you drew at least 2 balls, what is the probability you drew exactly 3 balls?
A box contains 5 red and 3 blue balls. You draw balls one by one without replacement until a blue ball is drawn. Given that you drew at least 2 balls, what is the probability you drew exactly 3 balls?