In stats model, why do we add a constant? What will happen when we don’t add constant to the stats model?

Data Science, AI and ML
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#1

Constant addition in stats model.

#2

To draw a line both intercept and slope are required as per line of the equation. B0 represents the intercept which is required. Without b0 and b1 we can’t draw a line only, then we will not be able to draw a regression line. Hence we will not know how points fit the regression line.