Решение задачи N4132 теория вероятностей Лапласа

4132. The power plant serves a network in which there are 2000 lamps, the probability of switching on each of them in the winter evening is 0.8. The probability that the number of simultaneously switched on lamps will be more than 1800 can be determined using the Muavre-Laplace theorem.

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