The mileage in 1 000s of miles that car owners get
The mileage (in 1,000s of miles) that car owners get with a certain kind of radial tire is a random variable having an exponential distribution with a mean of 50. In addition to providing the answer, state the relevant Excel commands.
a. What is the probability that a tire will last at most 40,000 miles?
b. What is the probability that a tire will last at least 65,000 miles?
c. What is the probability that a tire will last between 70,000 and 80,000 miles?

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