Решение задачи N1561 теория вероятностей Лапласа

1561. Of all the highlights, 15% are pitted. Find the probability that among 170 raisins without pits will be:
a) 20 highlights;
b) from 12 to 32 raisins;
c) how many raisins without pits will be among the 170 selected at random with the greatest probability?

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