Решение задачи N2868 теория вероятностей
2868. In the urn 5 red and 15 blue balls. Three balls are gradually pulled out of it. What is the probability that only the first two will turn blue?
Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)
Оплата и выдача товара осуществляются через партнёрскую платформу.