Решение задачи N5126 теория вероятностей
5126. In a batch of 80 products identical in appearance, 30 products of grade I and 50 products of grade II are mixed. Find the probability that two products taken at random will be: a) of the same grade, b) of different grades.
Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)
Оплата и выдача товара осуществляются через партнёрскую платформу.