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)