Решение задачи N4775 теория вероятностей
4775. There are 30 identical parts. Among them, 20 are painted. Take 5 items. Find the probability that 3 of them are colored.
Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)
Оплата и выдача товара осуществляются через партнёрскую платформу.