Решение задачи N4539 теория вероятностей
4539. There are 8 red and 5 blue balls in the urn. Two balls are taken out of the urn at random. Find the probability that they are different colors.
Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)
Оплата и выдача товара осуществляются через партнёрскую платформу.