Решение задачи N4696 теория вероятностей полиномиальный

4696. For each lottery ticket, with a probability of 0.14, a big win can fall, with a probability of 0.16, a small win, and with a probability of 0.7, the ticket can turn out to be without a win. Bought 15 tickets. Determine the probability of getting 2 big wins and 1 small win.

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