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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 53 and a
standard deviation of 7. Using the empirical rule (as
presented in the book), what is the approximate
percentage of 1-mile long roadways with potholes
numbering between 32 and 60?
Do not enter the percent symbol.