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APES Population Formulas
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Gravity
Terms in this set (6)
Population Density
population/area
Birth or Death Rates (%)
# of births or deaths per year/total population
Population Growth Rate (r) (%)
births-deaths/total population
Doubling Time of a Population (years)
.7/growth rate
Annual Growth Rate for the World (already in %)
CBR-CDR/10
Annual Growth Rate for a Nation (already in %)
(CBR+Immigration)-(CDR+Emmigration)/10
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