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 regressionline? About the unexplainedvariation?

r=0.328

a) Calculate the coefficient of determination ____

b) What does this tell you about the explained variation of the data about the regressionline?

__% of the variation can be explained by the regression line.

c) About the unexplainedvariation?

__ % of the variation is unexplained and is due to other factors or to sampling error.