Решение задачи N3556 теория вероятностей
3556. In an urn there are 20 balls: 16 white and 4 black. From the urn immediately remove 2 balls. What is the probability that at least one ball is white?
Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)
Оплата и выдача товара осуществляются через партнёрскую платформу.