Решение задачи N4987 теория вероятностей
4987. There are 10 parts in a box, 7 of which are painted. The picker draws 2 pieces at random. Find the probability that at least one of them is colored.
Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)
Оплата и выдача товара осуществляются через партнёрскую платформу.