Решение задачи N4698 теория вероятностей полиномиальный

4698. For each lottery ticket, with a probability of 0.17, a big win can fall, with a probability of 0.23, a small win, and with a probability of 0.6, the ticket can turn out to be without a win. Bought 15 tickets. Determine the probability of getting 3 big wins and 2 small ones.

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