Решение задачи N4068 теория вероятностей Байеса

4068. The number of trucks traveling along the highway on which the gas station stands refers to the number of cars passing along the same highway as 5: 2. The probability that a passing truck will refuel is 0.04. For a passenger car, this probability is 0.07. Find the probabilities of the following events: a) a passing car will refuel; b) a car pulled up to a gas station - a cargo one.

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