Each year, the U.S. Department of Energy publishes an Annual Energy Review that includes per capita energy consumption (in millions of Btu) for each of the 50 states. If you calculate the mean of these 50 values, is the result the mean per capita energy consumption for the total population from all 50 states combined? If it is not, explain how you would use those 50 values to calculate the mean per capita energy consumption for the total population from all 50 states combined.