Solution of problem N418 Laplace probability theory

Solution of problem N418 Laplace probability theory

418. There are 100 cars in the bus park. The probability of the bus entering the line is 0.9. To ensure the normal operation of the routes, it is necessary to have at least 90 cars on the lines. Determine the likelihood of normal functioning of bus routes.

Additional information:

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