The crude death rate is the number of deaths in a year, per size of the population, multiplied by 1000. According to the U.S. Bureau of the Census, recently Mexico had a crude death rate of 4.6 (i.e., 4.6 deaths per 1000 population) while the United States had a crude death rate of 8.4.

Could the overall death rate be higher in the United States even if the United States has a lower death rate than Mexico for people of each specific age?

Explain.