Решение задачи N3017 теория вероятностей
3017. There is an urn in which 4 white, 7 red and 3 black balls. Determine the probability that when choosing from an urn of two balls they will be black.
Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)
Оплата и выдача товара осуществляются через партнёрскую платформу.