A Professor Runs a Regression to See How Students' Exam$$\text { (X). The } R ^ { 2 } \text { of the regression is } 21 \% \text {. What does } R ^ { 2 } \text { tell us }$$

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The Answer of A Professor Runs a Regression to See How Students' Exam$$\text { (X). The } R ^ { 2 } \text { of the regression is } 21 \% \text {. What does } R ^ { 2 } \text { tell us }$$

A Professor Runs a Regression to See How Students' Exam $\text { (X). The } R ^ { 2 } \text { of the regression is } 21 \% \text {. What does } R ^ { 2 } \text { tell us }$

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A Professor Runs a Regression to See How Students' Exam (X). The R2 of the regression is 21%. What does R2 tell us \text { (X). The } R ^ { 2 } \text { of the regression is } 21 \% \text {. What does } R ^ { 2 } \text { tell us } (X). The R2 of the regression is 21%. What does R2 tell us

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A Professor Runs a Regression to See How Students' Exam $\text { (X). The } R ^ { 2 } \text { of the regression is } 21 \% \text {. What does } R ^ { 2 } \text { tell us }$