If we add more independent variables into the model: A) The R²value will decrease if the variables we are adding into the model should not be there. B) The R²value will increase. C) The adjusted R²value will increase. D) The R²will be biased.

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Quizplus · Accepted Answer

Adding more independent variables into the model will increase the R²value, as the model becomes more complex and is better able to account for the variation in the dependent variable. However, it's important to ensure that the variables added are actually relevant and improve the model's accuracy, otherwise the model may become overfit and perform poorly on new data.

If We Add More Independent Variables into the Model