Решение задачи N4590 теория вероятностей
4590. There are 7 black and 3 white balls in the urn. What is the probability that a ball drawn at random turns out to be white?
Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)
Оплата и выдача товара осуществляются через партнёрскую платформу.