Suppose the Average Tread-Life of a Certain Brand of Tire

question 101

Multiple Choice

Suppose the average tread-life of a certain brand of tire is 42,000 miles and that this mileage follows the exponential probability distribution. What is the probability that a randomly selected tire will have a tread-life of less than 65,000 miles?

• A)0.4497
• B)0.7872
• C)0.3084
• D)0.5630

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Definitions:

Altruism

Behavior intended to help others out of inner concern and without expectation of external reward; may involve self-denial or self-sacrifice.

Conscientious

A personality trait characterized by being thorough, careful, or vigilant; implies a desire to do a task well.

Risk Taker

An individual who is willing to engage in behaviors that have the potential for significant loss or gain.

Leads

Information or tips that guide or prompt action, especially in news, investigations, or sales.