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A tire company finds the lifespan for one brand of its tires is normally distributed with...

A tire company finds the lifespan for one brand of its tires is normally distributed with a mean of 48,100 miles and a standard deviation of 3,000 miles. If the manufacturer is willing to replace no more than​ 10% of the​ tires, what should be the approximate number of miles for a​ warranty?

a. 43,165

b. 44,260

c. 53,035

d. 51,940

Math   Statistics-And-Probability   
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