Solution of problem N4040 probability theory total prob

Solution of problem N4040 probability theory total prob

4040. There are four times more passenger cars at a gas station than trucks. The probability that a passing car will arrive at a gas station is 0.03 for a truck, and 0.25 for a passenger car. To the place where the gas station is located some car is approaching. What is the probability that she will come to the gas station?

Additional information:

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

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