Population Change - Vital Rates 4.0 / 5 based on 2 ratings ? GeographyPopulation change and migrationASAQA Created by: Emma TaylorCreated on: 29-03-13 14:36 Birth Rate The number of births in a year per 1000 of the population 1 of 9 Death Rate The number of deaths in a year per 1000 of the population 2 of 9 Rate of Natural Increase The number of people in a year by which a population increases or decrease per 1000 of the population 3 of 9 Doubling Time The time it takes for a population to double - 70 divided by population change 4 of 9 Infant Mortality Rate The number of deaths of infants (before their first birthday) in a year per 1000 live births 5 of 9 Life Expectancy The number of years a person in a given population is expected to live, usually expressed at birth 6 of 9 Dependency Ratio The proportion of the population not in work (under 16 and over 65) who are dependent on those in work 7 of 9 Fertility Rate The average number of children expected to be born to a woman over her lifetime assuming she lives from birth until the end of her reproductive life 8 of 9 Replacement Level The number of children needed per couple to maintain a population size 9 of 9
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