SOLUTION: use the value of the linear correlation coefficient to calculate the coefficient of determination.what does this tell you about the explained variation of the data about the regres

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Question 1087287: use the value of the linear correlation coefficient to calculate the coefficient of determination.what does this tell you about the explained variation of the data about the regression line? About the unexplained variation?
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!

You didn't write down what the value of r is. So it's impossible to answer what your teacher wants. But let's say that r is r = 0.7
That would mean r^2 = (0.7)^2 = 0.49 telling us that the coefficient of determination is 0.49
So in this example, 49% of the variation is explained by the regression line and 100% - 49% = 51% is unexplained (through some other factors)