A company determined that on an annual basis, the distance traveled per company car is normally distributed with a mean of 50,000 miles and a standard deviation of 12,000 miles.
a. What proportion of cars can be expected to travel between 34,000 and 50,000 miles in a year?
b.What is the probability that a randomly selected car travels between 34,000 and 38,000 miles?
c. How many miles will be traveled by at least 80% of the cars?