Решение задачи N4990 теория вероятностей
4990. There are 9 parts in a box, 5 of them are painted. For good luck, the assembler takes 3 parts. Find the probability that at least 1 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.