e/Index of dispersion

Information
has gloss	eng: In probability theory and statistics, the index of dispersion, dispersion index, coefficient of dispersion, or variance-to-mean ratio (VMR), like the coefficient of variation, is a normalized measure of the dispersion of a probability distribution: it is a measure used to quantify whether a set of observed occurrences are clustered or dispersed compared to a standard statistical model.
lexicalization	eng: index of dispersion
lexicalization	eng: Variance to Mean Ratio
lexicalization	eng: Variance-to-mean ratio
instance of	c/Point processes