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statistical spread

强调
一般 статистическая погрешность (In statistics, dispersion (also called variability, scatter, or spread) denotes how stretched or squeezed[1] is a distribution (theoretical or that underlying a statistical sample). Common examples of measures of statistical dispersion are the variance, standard deviation and interquartile range. WK Alexander Demidov)
航空 разброс статистических данных