Решение задачи N2609 теория вероятностей
2609. In the box are 4 blue and 5 red balls. 2 balls are taken out of the box at random. Find the probability that these balls are of different colors.
Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)
Оплата и выдача товара осуществляются через партнёрскую платформу.