Today in class we talked a bout population pyramids. for population pyramids we use them to analyze growth or decline of fertility, mortality, and migration in a given group of people. There are three main types of these graphs. first there is the Christmas tree graph. this graph shows that growth rate is slow, high birth rate, short life expectancy, and these are signs of a developing nation. Then there are the box graphs. these graphs have a low infant mortality, slow population growth, long life, and is a developed nation. Then there is a cup graph these graphs have a low birth rate, shrinking population, long life expectancy, and undeveloped nation. The just of it is the more kids you have and the more working people you have you are a developed place. but If the working people are low and kids high you are a developing nation. if the kids birth rate is slow and not many kids are born that is very bad.
/\ _________ __________
/ \ | | \ /
/ C \ | box | \ Cup /
/ tree \ | | \ /
/_____ \ |________ | \ ______ /
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