math
posted by Madison .
The tread life of a particular tire is a random variable best described by a normal distribution with a mean of 60,000 miles and a standard deviation of 2000 miles. What is the probability that a randomly selected tire of this brand will last longer than 58,000 miles?
A.0.7266, B.0.8413, C.0.1587, D.0.2266

math 
anaavu
A.0.7266
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