Final answer:
The probability used to find the probability of silver cars in a supermarket parking lot is empirical probability. It is based on observed data or experimentation.
Step-by-step explanation:
The type of probability used when finding the probability of silver cars by looking in a supermarket parking lot is empirical probability. Empirical probability is based on observed data or experimentation.
In this case, the probability of finding a silver car would be calculated by dividing the number of silver cars by the total number of cars in the parking lot. For example, if there are 100 cars in the parking lot and 20 of them are silver, the probability of selecting a silver car would be 20/100 = 0.2 or 20%.