Решение задачи N4513 теория вероятностей
4513. There are 4 red and 7 blue balls in the urn. 2 balls were simultaneously pulled out of the urn. What is the probability that both balls are red?
Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)
Оплата и выдача товара осуществляются через партнёрскую платформу.