Chapter 3 test 2 Flashcards
Dependency ratio
the number of people in a dependent age group (under age 15 or age 65 and older) divided by the number of people in the working age group
sex ratio
the proportion of males to females in a population
demographics
data about the structures and characteristics of human populations
Fertility
the ability to produce children
Crude birth rate (CBR)
the number of births in a given year per 1000 people in a given population
Total Fertility Rate (TFR)
the average number of children one woman in a given country or region will have during her childbearing years
mortality
deaths as a component of population change
Crude Death Rate (CDR)
the number of deaths in a given year per 1000 people in a given population
Infant mortality rate (IMR)
the number of deaths of children under the age of 1 per 1000 live births
Life expectancy
the average number of years a person is expected to live
population pyramid
a graph that shows the age-sex distribution of a given population
