Решение задачи N4566 теория вероятностей
4566. There are 5 white and 8 black balls in the urn. One ball is taken out of it at random. What is the probability that the ball taken out turns out to be black?
Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)
Оплата и выдача товара осуществляются через партнёрскую платформу.