The Gini index is useful to calculate the enclosed area between the Lorenz curve and the diagonal passes through the points (0.0) and (1.1), so we can more easily quantify whether or not there is equal distribution and permiterá us make a better comparison between different variables.
The expression for calculating it is:
G = \\ left
is bounded between 0 and 1, and the smaller the better indicator equidistribution exist in the population.
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