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Solution of problem N4939 probability theory
4939. There are 30 parts randomly placed in a box, 7 of them are standard. The worker takes 3 parts at random. Find the probability that at least one of the parts taken is standard.
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: