Решение задачи N4469 теория вероятностей
4469. There are 20 balls in the urn, 12 of which are black. What is the probability that 2 balls taken at random will turn 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.