Решение задачи N4512 теория вероятностей
4512. There are 7 red and 6 blue balls in the urn. Two balls are simultaneously taken 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.