Решение задачи N4462 теория вероятностей
4462. The urn contains 3 white and 4 black balls. What is the probability that two balls taken out of it at random turn 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.