Решение задачи N955 теория вероятностей Пуассона

955. The probability that the product will not withstand the test is 0.005. Find the probability that of the 600 items tested will not withstand the test:
a) two products;
b) at least one product.
Find the most incredible number of products that will withstand the test.

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