I am not sure what the relationship between correlation coefficient and coefficient of variation. I know that correlation coefficient is r and coefficient of determination is r^2 and CV = s/x-bar but not how to relate them using the information in the problem below.
The correlation coefficient for some data is 0.70. (10 points) a. Find the coefficient of variation._____ b. What percent of the variation of y can be explained by the variation of x?____