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8) The number of potholes in any given 1 mile stretch of freeway pavement in Pennsylvania has a bell-shaped distribution. This distribution has a mean

8) The number of potholes in any given 1 mile stretch of freeway pavement in Pennsylvania has a bell-shaped distribution. This distribution has a mean of 65 and a standard deviation of 9. Using the empirical rule, what is the approximate percentage of 1-mile long roadways with potholes numbering between 38 and 83?

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