Решение задачи N4409 теория вероятностей
4409. There are 10 balls in an opaque box: 6 black and 4 white. Two balls are taken out at random. What is the probability that both balls taken out are white?
Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)
Оплата и выдача товара осуществляются через партнёрскую платформу.