CT-AI Question 27

Community Discussion

Written by other learners. Comments can disagree with the marked answer — check the official documentation when in doubt.

• Chose B0

  - Mean Squared Error (MSE) squares each residual before averaging, which penalizes large errors disproportionately. RMSE is the square root of MSE and shares this property in the original units. MAE (Mean Absolute Error) treats all errors linearly. MAPE expresses error as a percentage. R² is the coefficient of determination, indicating proportion of variance explained.