Решение задачи N4437 теория вероятностей
4437. The urn contains 11 white, 9 red and 12 black balls. Remove 2 balls. Find the probability that they are both white.
Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)
Оплата и выдача товара осуществляются через партнёрскую платформу.