2.3 -- Population Pyramids Flashcards
Dependency ratio
the number of people who are too young or too old to work compared to those who can (under 15 over 65)
Sex Ratio
of males per 100 females
Population pyramid
a bar graph that displays the percentage of a place’s population for each age and gender
Epidemiology
the branch of medical science concerned with the incidence, distribution, and control of diseases among a population
More developed countries (MDC) traits
High per capita gross domestic product
High life expectancy
High literacy rates & years of education
High % of urban population
Developed infrastructure
Low birth, death, and infant mortality rates
Stable population growth
Stages 4-5 of the DTM
Europe, Japan, South Korea, Australia, Canada, USA
Less developed countries (LDC) traits
Low per capita GDP
Low life expectancy
Low literacy rates & years of education
High % rural population
Little developed infrastructure
High birth, death, and infant mortality rates
Unstable population growth
Stages 2-3 of the DTM
Sub Saharan Africa, Latin America, Central Asia
THE DTM: DEMOGRAPHIC TRANSITION MODEL
theory that examines the transition from a pre-industrial society to an industrialized economic system