Gini average difference
From Encyclopedia of Mathematics
A magnitude characterizing the dispersion of the values of a random variable . It was introduced by C. Gini in 1912 and is defined by the formula
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where is the distribution function of the random variable. Another variable which is also occasionally considered is the Gini dispersion coefficient
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where is the mathematical expectation of the random variable
.
References
[1] | M.G. Kendall, A. Stuart, "The advanced theory of statistics. Distribution theory" , 3. Design and analysis , Griffin (1969) |
How to Cite This Entry:
Gini average difference. Encyclopedia of Mathematics. URL: http://encyclopediaofmath.org/index.php?title=Gini_average_difference&oldid=47098
Gini average difference. Encyclopedia of Mathematics. URL: http://encyclopediaofmath.org/index.php?title=Gini_average_difference&oldid=47098
This article was adapted from an original article by K.P. Latyshev (originator), which appeared in Encyclopedia of Mathematics - ISBN 1402006098. See original article