Решение задачи N4525 теория вероятностей
4525. There are 4 white and 9 black balls in the urn. Two balls are taken out of the urn at once. Find the probability that both balls will be white. Round the result to thousandths
Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)
Оплата и выдача товара осуществляются через партнёрскую платформу.