Решение задачи N4630 теория вероятностей Пуассона

4630. Radio equipment consists of 2000 elements. The probability of failure of one element during the year is 0.001. What is the probability of failure of three elements in a year? What is the probability of failure of at least two elements in a year?

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