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A Writer's Dictionary:

SD Definition


Dictionary Home » Words Starting with S » sculpturesque ... sealant » SD


SD
abbreviation
    1. South Dakota.
      Form: S Dak.
    2. math.
      Standard deviation.



standard deviation
noun
    1. math.
      A measurement frequently used in statistics, which is obtained by calculating the square root of the mean of the squared deviations that a set of observations show from the mean of the sample.


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