Решение задачи N4492 теория вероятностей
4492. There are 5 white and 3 black balls in the urn. Two balls are taken out in a row, while the balls are not returned back to the basket. Find the probability that both balls taken out are black.
Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)
Оплата и выдача товара осуществляются через партнёрскую платформу.