The tread life of a particular brand of tire is a random variable best described by a normal distribution with a mean of 60,000 miles and a standard deviation of 2900 miles. The manufacturer wants to set the
minimum guaranteed mileage so that no more than 4 percent of the tires will have to be replaced. What
minimum guaranteed mileage should the manufacturer announce?
O 64920
O 54925
47850
O 35625