Решение задачи N249 теория вероятностей Лапласа

249. The probability that a pair of shoes taken at random from the manufactured lot will be of the first grade is 0.4. Determine the likelihood that among the 600 couples entering the control, there will be at least 230 pairs of the first class.

Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)