The file McDonaldsStores contains the number of McDonald’s stores located in each of the 50 U.S. states and the District of Columbia, as of December 31, 2016: Source: Data extracted from bit.ly/2qJjFpF. a. Compute the mean, variance, and standard deviation for this population. b. What percentage of the 50 states have a number of McDonald’s stores within {1, {2, or {3 standard deviations of the mean? c. Compare your findings with what would be expected on the basis of the empirical rule. Are you surprised at the results in (b)?
