Решение задачи N4564 теория вероятностей
4564. There are 12 balls in the urn, differing only in color. Among these balls there are 5 black and 7 white. What is the probability that the ball sticking out at random 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.