Решение задачи N4481 теория вероятностей
4481. From an urn, in which there are 30 white and 4 red balls, 3 balls are taken out at random. Find the probability that there are 2 red balls among them.
Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)
Оплата и выдача товара осуществляются через партнёрскую платформу.