United Airlines is studying the weight of luggage for each passenger. For a large group of domestic passengers, the mean is 47 pounds with a standard deviation of 10 pounds. For a large group of overseas passengers, the mean is 78 pounds and the standard deviation is 15 pounds. Compute the relative dispersion (Coefficient of Variation) of each group and give us your thoughts on the dispersion.
About 95% of all checked luggage on domestic flights weigh between what two values? How did you find this?