Linear Regression         Interview Questions       for Data Scientists

10

What is multicollinearity and how does it affect linear regression analysis?

1

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How do you determine the significance of a predictor variable in a linear regression model?

2

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3

What is the role of a dummy variable in linear regression analysis?

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4

What is heteroscedasticity?

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5

What is the difference between a categorical and continuous variable in linear regression?

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6

What is the impact of correlated predictor variables on linear regression analysis?

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7

How do you evaluate the goodness of fit of a linear regression model?

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8

What is a prediction interval in linear regression and how is it used?

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9

How to find RMSE and MSE?

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10

What are the common techniques used to improve the accuracy of a linear regression model?

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