The Life Expectancy of a Particular Brand of Tire Is

question 84

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 is the probability that a randomly selected tire will have a life of at least 52,500 miles?

• A) 0.0062
• B) 0.9938
• C) 0.0000
• D) 1.0000

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