Solution of problem N5158 probability theory

Solution of problem N5158 probability theory

5158. The box contains 19 parts, 13 of which are defective. Determine the probability that among three randomly selected parts
a) all high quality;
b) exactly one quality;
c) at least one of good quality.

Additional information:

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

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