Question: In the regression model Y = 0 + 1X1 + 2X2 + the extent of any multicollinearity can be evaluated by finding the correlation

In the regression model
Y = β0 + β1X1 + β2X2 + ε
the extent of any multicollinearity can be evaluated by finding the correlation between X1 and X2 in the sample. Explain why this is so.

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