Решение задачи N3047 теория вероятностей
3047. The urn contains 5 black and 7 white balls. Randomly take out 4 balls. Find the probability that among them there is:
a) 3 whites.
b) less than 3 whites.
c) at least 1 white.
Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)
Оплата и выдача товара осуществляются через партнёрскую платформу.