Решение задачи N2572 теория вероятностей
2572. In an urn there are 15 white and 5 black balls. At random, 5 balls were selected. Find the probability that among them there will be exactly 3 white balls.
Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)
Оплата и выдача товара осуществляются через партнёрскую платформу.