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Describe the empirical rule

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Question: Suppose that the distribution of speeds at an interstate highway location is bell-shaped with a mean of 71 mph and a standard deviation of 5 mph. Use the Empirical Rule to complete each sentence:

a. About 68% of vehicles at this location travel between and mph.

b. About 95% of vehicles at this location travel between and mph.

c. About 99.7% of vehicles at this location travel between and mph.

Reference no: EM131719442

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