Решение задачи N3030 теория вероятностей
3030. In an urn there are 20 balls: 16 white, 4 black. 3 balls are taken out of the urn at once. What is the probability that 2 of them will be white and 1 black?
Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)
Оплата и выдача товара осуществляются через партнёрскую платформу.