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 exactly 47,500 miles? Select one: a. 0.0000 b. 0.9332 c. 0.0668 d. 0.4993
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Plugging in the values, we get: z = (47,500 - 40,000) / 5,000 z = 1.5 Show more…
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