Solution of problem N4033 probability theory total prob

Solution of problem N4033 probability theory total prob

4033. The number of foreign cars passing by a gas station refers to the number of domestic cars as 2: 3. The probability that a car will stop at a gas station is 0.2 for a foreign car, and 0.1 for a domestic car. Find the probability that a passing car will stop at the gas station.

Additional information:

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