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An urn contains 3 red and 2 white balls. A ball is drawn and then it.pdf
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An urn contains 3 red and 2 white balls. A ball is drawn and then it.pdf

  1. An urn contains 3 red and 2 white balls. A ball is drawn and then it, and another ball of the same color are placed back in the urn. Finally, a second ball is drawn. What is the probability that a) second ball is white? b) If second ball is white, what is the probability that the first ball was red? c) both are white balls? Solution wouldnt the answer be 2/3?
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