A real number or a category characterizing the statistical properties of a given Dataset.
See also
Formal science / Mathematics / Statistics
Natural Science / System / Model
[ Mean value ] [ Mean Square Error (MSE) ] [ Coefficient of determination (R2) ]
[ Root Mean Square Deviation (RMSD) = Root Mean Square Error (RMSE) ]
[ Average Percentage Error (APE) = Average Relative Error (ARE) ]
[ Average Absolute Percentage Error (AAPE) = Average Absolute Relative Error (AARE) ]