Решение задачи N2586 теория вероятностей
2586. In the urn 4 white and 7 black balls. From the urn at the same time take out 2 balls. What is the probability that both balls are white.
Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)
Оплата и выдача товара осуществляются через партнёрскую платформу.