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Solution of problem N4431 probability theory
4431. The urn contains 10 red and 5 blue balls, and the balls are thoroughly mixed. Remove 3 balls at random. Find the probability that at least one of these balls turns out to be blue.
Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)
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Discount for regular customers! If the total of your purchases from the seller
Massimo86
exceeds: