mean deviation

Noun
  1. The arithmetic mean of the absolute values of deviations from the mean of a distribution (synset 106032825)
    referred to in: 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
    is a type of: deviation - the difference between an observed value and the expected value of a variable or function
    same as: mean deviation from the mean

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