The life expectancy of a particular brand of tire is normally distributed with a mean of 30,000 and a standard deviation of 6,000 miles. What is the probability that a randomly selected tire will have...

The life expectancy of a particular brand of tire is normally distributed with a mean of 30,000 and a standard deviation of 6,000 miles. What is the probability that a randomly selected tire will have a life of exactly 41,400 miles?