Решение задачи N4394 теория вероятностей
4394. There are 12 balls in the box, 2 of them are black and 10 are white. Take out 2 balls at random. What is the probability that the balls will be different colors?
Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)
Оплата и выдача товара осуществляются через партнёрскую платформу.