Solution of problem N5106 probability theory

Solution of problem N5106 probability theory

5106. There are 15 products in the batch: 10 products of the first grade, and 5 of the second. At random, 3 items are taken one after the other without returning to the lot. Find the probability that at least one item is second grade.

Additional information:

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

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