BCG Interview Question | Multiple Regression
Question
Mention the methods to validate a model you created to generate a predictive model of a quantitative outcome variable using multiple regression.
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Machine Learning
4 years
1 Answer
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Answer ( 1 )
Divide the dataset into train and test sets.
Build the model on the train set and validate the model on the test set.
Use metrics like R^2, RMSE, MSE, MAE to gauge the performance.
You can also use cross validation to avoid issues like over-fitting.