The graph
above is an example of accumulative line graph or Lorenz curve. This curve is
used in economics and ecology. It is a graphical representation of the
cumulative distribution function of the empirical probability distribution of
wealth; it is a graph showing the proportion of the distribution assumed by the
bottom y percentage of values. It is often used to represent income
distribution, where it shows for the bottom x percentage of household, what y
percentage of the total income they have.
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