MATH / MODEL EVALUATION
Calculate root mean square error for four equally weighted prediction residuals. Inspect the equation, substituted values, result, assumptions, and interpretation in one guided workspace.
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Calculate root mean square error for four equally weighted prediction residuals. The page evaluates the displayed equation from your supplied values and presents both symbolic and substituted KaTeX working so the arithmetic can be checked.
RMSE=sqrt[sum(e_i^2)/4]
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What you receive
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Residuals use one outcome scale and are representative of the evaluation sample.
Use internally consistent units and retain extra precision when carrying the result into another calculation.
Reviewed reference factors