Mathematics · Statistics
Which of the following statements is true for Mean Squared Deviation (MSD)?
- 1It assesses the average squared difference between the observed and predicted values.✓
- 2It is strictly positive even if the model has absolutely no error.
- 3Its value decreases with an increase in model error.
- 4It is always completely different in concept and formulation from mean squared error.
Correct answer
It assesses the average squared difference between the observed and predicted values.
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