Решение задачи N2913 теория вероятностей
2913. In the urn there are 7 white and 3 black balls. At random, one by one remove 3 balls without return. Find the probability that all 3 extracted 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.