Solution of problem N4659 probability theory
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Product description
- There are products of four grades, and the number of products of each grade is, respectively, 1, 2, 3, 4. For control, 7 products are taken at random. Determine the probability that among them 1 is a first-class item, 1 is a second-grade item, 2 is a third-grade item, and 3 is a fourth-grade item.
Additional information
Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)