Решение задачи N4135 теория вероятностей Лапласа

4135. The district power station provides a network with 10,000 lamps, the probability of switching on each of them in the evening is 0.6. Determine the probability that the number of lamps simultaneously switched on in the evening will be between 5,900 and 6,100.

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