The square of the correlation coefficient r 2 will always be positive and is called the ________(a) Regression(b) Coefficient of determination(c) KNN(d) AlgorithmThe question was asked during an internship interview.My question comes from Linear Regression in chapter Commands, Packages, Visualizing Data and Linear Regression of R Programming

The square of the correlation coefficient r 2 will always be positive

1.	The square of the correlation coefficient r 2 will always be positive and is called the ________(a) Regression(b) Coefficient of determination(c) KNN(d) AlgorithmThe question was asked during an internship interview.My question comes from Linear Regression in chapter Commands, Packages, Visualizing Data and Linear Regression of R Programming
Answer» Correct option is (B) Coefficient of DETERMINATION The explanation is: The square of the correlation coefficient r square will always be positive and is CALLED the coefficient of determination. This also is equal to the proportion of the TOTAL variability that’s explained by a linear model.

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