Since the 1900s, two standard measures of assessing a population’s health have been and life expectancy

The correct answer is mortality.

Mortality rates are the number of people who die within a time period, often a year. A special subcategory is infant mortality. Mortality and life expectancy are combined to show what the population's health is and how the trends are changing for better or for worse.

True. the more you know, the better of you will be.