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Do we always need the intercept term in a regression model?
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Do we always need the intercept term in a regression model?
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MockInterview
Staff
asked 7 years ago
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MockInterview
Staff
answered 7 years ago
It guarantees that the residuals have a zero mean
It guarantees the least squares slopes estimates are unbiased
the regression line floats up and down, by adjusting the constant, to a point where the mean of the residuals is zero
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