Решение задачи N1074 теория вероятностей Лапласа

1074. The company has 2,400 units. Each unit includes a certain part, the probability of failure of which during the time t is equal to 1/6. Proceeding from this, the procurement department procured spare spare parts of this type for a time t. Find the probability that this number of spare parts will ensure the uninterrupted operation of all units during the time t.

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