Решение задачи N2874 теория вероятностей
2874. In the urn balls of different colors: 20 red, 15 green, 5 blue. Find the probability that from the urn at random the two extracted balls will turn green.
Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)
Оплата и выдача товара осуществляются через партнёрскую платформу.