Solution of problem N5325 probability theory

Solution of problem N5325 probability theory

5325. From a batch in which 12 parts without defects and 8 with defects, 5 parts are taken at random. Find the probability that: a) all 5 parts will be free of defects; b) at least 1 item will be free from defect.

Additional information:

Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)

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