Решение задачи N4518 теория вероятностей
4518. From the urn, which contains 12 white 8 black balls, take out 2 balls. What is the probability that both balls will be black?
Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)
Оплата и выдача товара осуществляются через партнёрскую платформу.