Решение задачи N4395 теория вероятностей
4395. The box contains 8 white and 12 black balls. Two balls are taken out of it at random, one after the other. What is the likelihood that:
a) they have the same color
b) are they different colors?
Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)
Оплата и выдача товара осуществляются через партнёрскую платформу.