Demography - definitions Flashcards
Define birth rate
The number of live births per thousand of the population per year.
Define death rate
The number of deaths per thousand of the population per year.
Define demography
The study of a population and its characteristics such as its size and age structure.
What factors affect population size
Births, death, immigration and emigration
Define infant mortality rate
The number of deaths of children under the age if one; expressed per thousand live births per year.
Define life expectancy
The average number of years that an individual can expect to live
Define ageing population
A population in which the average age is increasing
Define total fertility rate
The average number a children a woman will have between her reproductive ages of 15-44
Define emigration
The movemrn of people out of an area
Define immigration
The movement of people in to an area
Define net migration
The difference between the number of people moving in to an area (immigrants) and the number of people moving out of an area (emigrants)
