Решение задачи N4839 теория вероятностей
4839. There are 20 parts in a box, 15 of which are painted. 4 parts were taken at random. Find the probability that the extracted parts will be painted. Solved in two ways.
Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)
Оплата и выдача товара осуществляются через партнёрскую платформу.