Решение задачи N3131 теория вероятностей
3131. In the box are 8 red and 4 blue pencils. Randomly take out 2 pencils. What is the probability that both pencils turn out to be red?
Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)
Оплата и выдача товара осуществляются через партнёрскую платформу.