Question: If you add one more variable to a regression, by how much does the adjusted R 2 change, if that variable does not improve the

If you add one more variable to a regression, by how much does the adjusted R2 change, if that variable does not improve the explanatory power of the model?

A.(1R2)npn1

B.+(1R2)npn1

C.(1R2)npn1p

D.(1R2)(np)2n1

E.+(1R2)(np)2n1

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