the number of live births per 1000 people per year
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what is DR?
the number of deaths per 1000 people per year
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What is infant mortality rate?
the average number of children (out of every 1000 born alive) who die before their first birthday
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fertility rate definition
the average number of children a woman will have between the ages of 15 and 44 (reproductive age)
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life expectancy (longevity)
the average age a person can expect to live in years
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migration rate
the difference between the number of people migrating in (immigrants) and the number of those moving out (emigrants) per 100,000 or 1,000 of a population per year
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population density
the number of people per square kilometre; worked out by the total population divided by the size of the area
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natural change
change in population caused by the difference between birth rate and death rate
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zero growth rate
the population is neither increasing nor decreasing e.g. birth rate = death rate
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