mean deviation(redirected from mean deviation from the median)
Also found in: Thesaurus, Encyclopedia.
In a statistical distribution or a set of data, the average of the absolute values of the differences between individual numbers and their mean.
1. (Statistics) the difference between an observed value of a variable and its mean
2. (Statistics) Also: mean deviation from the mean, mean deviation from the median or average deviation a measure of dispersion derived by computing the mean of the absolute values of the differences between observed values of a variable and the variable's mean
Statistics. a measure of dispersion, computed by taking the arithmetic mean of the absolute values of the deviations of the functional values from some central value, usu. the mean or median.Also called average deviation.
Switch to new thesaurus
|Noun||1.||mean deviation - the arithmetic mean of the absolute values of deviations from the mean of a distribution|
statistics - a branch of applied mathematics concerned with the collection and interpretation of quantitative data and the use of probability theory to estimate population parameters
deviation - the difference between an observed value and the expected value of a variable or function