measures of dispersion
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Statistical dispersion — In statistics, statistical dispersion (also called statistical variability or variation) is variability or spread in a variable or a probability distribution. Common examples of measures of statistical dispersion are the variance, standard… … Wikipedia
dispersion, measures of — See variation (statistical) … Dictionary of sociology
Price dispersion — In economics, price dispersion is variation in prices across sellers of the same item, holding fixed the item s characteristics. Price dispersion can be viewed as a measure of trading frictions (or, tautologically, as a violation of the law of… … Wikipedia
МЕРЫ ДИСПЕРСИИ — (measures of dispersion) различные способы вычисления степени, в которой совокупность индивидуальных величин наблюдений, чисел и т.д. группируется вокруг митральной точки. Меры дисперсии, тесно связанные с мерами центральной тенденции,… … Большой толковый социологический словарь
Descriptive statistics — quantitatively describe the main features of a collection of data.[1] Descriptive statistics are distinguished from inferential statistics (or inductive statistics), in that descriptive statistics aim to summarize a data set, rather than use the… … Wikipedia
Absolute deviation — In statistics, the absolute deviation of an element of a data set is the absolute difference between that element and a given point. Typically the point from which the deviation is measured is a measure of central tendency, most often the median… … Wikipedia
variation — (statistical) The greater part of empirical research is concerned with the characteristics of groups, or aggregate social entities, rather than individual cases; that is, with men or women in general, rather than any particular man or woman. A… … Dictionary of sociology
variation (statistical) — The greater part of empirical research is concerned with the characteristics of groups, or aggregate social entities, rather than individual cases; that is, with men or women in general, rather than any particular man or woman. A range of… … Dictionary of sociology
Qualitative variation — An index of qualitative variation (IQV) is a measure of statistical dispersion in nominal distributions. There are a variety of these, but they have been relatively little studied in the statistics literature. The simplest is the variation ratio … Wikipedia
Variance — In probability theory and statistics, the variance of a random variable, probability distribution, or sample is one measure of statistical dispersion, averaging the squared distance of its possible values from the expected value (mean). Whereas… … Wikipedia
