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Solution of problem N5063 probability theory
5063. There are 20 parts in a box, 4 of them are defective. 2 parts are taken out of the box at once. Find the probability that both of them are valid. Solved in two ways.
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: