Решение задачи N2588 теория вероятностей
2588. In an urn there are 7 white and 5 red balls, identical to the touch. Randomly extracted 4 balls. Find the probability that among them will be at least three red.
Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)
Оплата и выдача товара осуществляются через партнёрскую платформу.