Решение задачи N4558 теория вероятностей
4558. There are 20 balls in the urn, among which 3 are red, 7 are blue, the rest are white. What is the probability that a ball taken at random turns out to be white?
Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)
Оплата и выдача товара осуществляются через партнёрскую платформу.