A Machine Learning Specialist trained a regression model, but the first iteration needs optimizing. The Specialist needs to understand whether the model is more frequently overestimating or underestimating the target. What option can the Specialist use to determine whether it is overestimating or underestimating the target value?

Topic #: - All AWS Certified Machine Learning - Specialty Questions

A. Root Mean Square Error (RMSE)
B. Residual plots
C. Area under the curve
D. Confusion matrix

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