Решение задачи N1463 теория вероятностей Лапласа

1463. The cargo delivers to the construction site a column of 120 motor vehicles. The probability of successfully overcoming an impassable path by each machine is 0.6. What is the probability that 70 cars will arrive at the construction site? At least 75 cars will arrive.

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