<Li> The general fertility rate, the annual number of live births per 1,000 women of childbearing age (often taken to be from 15 to 49 years old, but sometimes from 15 to 44). </Li> <Li> The age - specific fertility rates, the annual number of live births per 1,000 women in particular age groups (usually age 15 - 19, 20 - 24 etc .) </Li> <Li> The crude death rate, the annual number of deaths per 1,000 people . </Li> <Li> The infant mortality rate, the annual number of deaths of children less than 1 year old per 1,000 live births . </Li>

Explain the characteristics that make up a population