Solved

The Life Expectancy of a Particular Brand of Tire Is

Question 6

Multiple Choice

The life expectancy of a particular brand of tire is normally distributed with a mean of 40,000 and a standard deviation of 5,000 miles.What percentage of tires will have a life of 34,000 to 46,000 miles?


A) 38.49%
B) 76.98%
C) 50%
D) 88.49%

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