APES Formulas
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10 Terms
1
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Population density
Total population/total area
2
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Birth rate (%)
(Total births/total population) x100
3
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Birth rate (per 1000)
(Total births/total population) x1000
4
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Death rate (%)
(Total deaths/total population) x100
5
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Death rate (per 1000)
(Total deaths/total population) x1000
6
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Population growth rate
[(births-deaths)+(immigration-emigration)x100]/pop size
7
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Global population growth
(CBR-CDR)/10
8
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Doubling time
70/% growth rate= years to double
9
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Percent change
(new-old/old) x100
10
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New pop size
(Old pop size) x (% increase as a decimal) = population added, then go back and add it to old pop size