This Question: 5 pts Use the value of the linear correlation coefficient to calc

Question

This Question: 5 pts Use the value of the linear correlation coefficient to calculate the coefficient of determination. What does this tell you about the explained vari r 0.629 Calculate the coefficient of determination. (Round to three decimal places as needed.) What does this tell you about the explained variation of the data about the regression line? of the variation can be explained by the regression line. (Round to one decimal place as needed) About the unexplained variation? of the variation is unexplained and is due to other factors or to sampling error (Round to one decimal place as needed.)

Explanation / Answer

Given,

Correlation coefficient (r) = 0.629

1) Coefficient of Determination (R2) = (0.629)2 = 0.396

2) 39.6% of variation can be explained by regression line.

3) 60.4% of variation is uneplained and due to other factors or to sampling errors.

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