Решение задачи N4387 теория вероятностей
4387. There are twelve balls in the box, four of them are black and eight are white. Two balls are taken out at random. Find the probability that both balls 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.