population pyramids

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  • population pyramids
    • shows age groups, population (millions), male and female
    • shows the age - sex structure of a population
    • wide base means....
      • high infant mortality
      • high birth rate
      • LEDC
    • wide top means ....
      • low death rate
      • high life expectancy
      • MEDC
    • wide middle means....
      • high working population
      • LEDC/MEDC
    • steeper sides means a lower death rate
    • indentations = increased death rate
    • protrusions = increase in birth rate
    • infant mortality
      • look at 0-4 and 5-9... takeaway to find those who died before the age of one


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