Решение задачи N4406 теория вероятностей
4406. There are 20 white and 30 black balls in a box. We took 10 balls at random. What is the probability that there are 6 white balls among them?
Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)
Оплата и выдача товара осуществляются через партнёрскую платформу.