Решение задачи N4370 теория вероятностей
4370. The box contains 4 white and 3 black balls. 2 balls were taken out at random. What is the probability that 2 black balls are drawn?
Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)
Оплата и выдача товара осуществляются через партнёрскую платформу.