Решение задачи N4555 теория вероятностей
4555. There are 12 balls in the urn. Among these balls there are 3 white and 9 black. What is the probability that a ball drawn at random turns out to be white?
Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)
Оплата и выдача товара осуществляются через партнёрскую платформу.