Решение задачи N5105 теория вероятностей
5105. There are 15 products of the first grade and 10 products of the second grade in a lot. Three items are randomly selected. Find the probability that among these three products at least one of the first grade.
Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)
Оплата и выдача товара осуществляются через партнёрскую платформу.