The tread life of a particular brand of tire is a random

Last updated: 7/28/2022

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 1200 miles. What is the probability a certain tire of this brand will last between 57,480 miles and 57,840 miles? 0.4649 0.0180 0.4920 0.9813