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Solution of problem N4378 probability theory
4378. The box contains 15 red and 5 blue balls. Take out 2 balls at random. What is the probability that balls of different colors are taken out?
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: