2755. There are 20 students in the group. 4 of them are

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2755. There are 20 students in the group. 4 of them are excellent in math, 7 are good, and 9 are satisfactory. 5 students are randomly selected. What is the probability that among them there are 2 honors pupils and 3 horoshistas.

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

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