Решение задачи N4563 теория вероятностей
4563. There are 12 balls in the urn, differing only in color, 5 black and 7 white. What is the probability that a ball drawn 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.