Решение задачи N4909 теория вероятностей
4909. There are 20 parts in the batch, 6 of which are non-standard. All parts are identical in appearance. Determine the probability that out of 5 randomly selected parts at least 2 will be non-standard.
Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)
Оплата и выдача товара осуществляются через партнёрскую платформу.