The Lorenz Curve (Accumulative Line Graph) is formed by plotting the cumulative distribution of
the amount of the variable concerned against the cumulative frequency
distribution of the individuals possessing the amount. In the geography realm this map type is used to study biodiversity.
The image above is considered an Accumulative Line Graph / Lorenz Curve. This cumulative frequency curve shows the distribution of a
variable such as population against an independent variable such as income or
area settled. If the distribution of the dependent variable is equal, the plot
will show as a straight, 45° line. Unequal distributions yield
a curve.
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