SOLUTION: The tread life of a particular brand of tire can be describe by a normal distribution with a mean of 60,000 miles and a standard deviation of 2300 miles. what is the probability a

Algebra ->  Probability-and-statistics -> SOLUTION: The tread life of a particular brand of tire can be describe by a normal distribution with a mean of 60,000 miles and a standard deviation of 2300 miles. what is the probability a       Log On


   

Question 1074824: The tread life of a particular brand of tire can be describe by a normal distribution with a mean of 60,000 miles and a standard deviation of 2300 miles. what is the probability a particular tire of this brand will last more than 57,700 miles? express the probability as a decimal.
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
z=(x-mean)/sd
>=(57700-60000)/2300
>= -1
That is 0.8413.