Решение задачи N4194 теория вероятностей Лапласа

4194. In the district office of Sberbank, 80% of the employees at the plant keep deposits. What is the probability that out of 900 at random selected employees of the plant in this branch of Sberbank are kept deposits: a) from 600 to 700 people; b) 750 people?

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