Discuss the differences by age between the two cities and hypothesis as to what those differences might mean in terms of crude death rates. Then, using the CDR, create a standardized mortality rate to compensate for the age differences between the two cities.

Age and Sex Population, Census, April 1, 2010 399,457 2,099,451 PEOPLE Age and Sex Persons under 5 years, percent Persons under 18 years, percent Persons 65 years and over, percent Female persons, percent () 5.6% 16.9% 16.4% 49.6% (.) 7.2% (S) 24.6% (i) 11.1% (i) 50.2% \begin{tabular}{|l|r|r|} \hline Crude Death Rate & A city (per 100,000 Population) & B City (per 100,000 Population) \\ \hline Under 5 & 119 & 23.7 \\ \hline Under 18 & 21.3 & 11.7 \\ \hline 65 years and over & 3772.8 & 647.74 \\ \hline Female persons & 618.7 & 501.84 \\ \hline \end{tabular}