Using your favorite statistics software package, you generate a scatter plot with a regression equation and correlation coefficient. The regression equation is reported as 90.18x + 67.52 and the r =...

Extracted text: Using your favorite statistics software package, you generate a scatter plot with a regression equation and correlation coefficient. The regression equation is reported as 90.18x + 67.52 and the r = -0.345. What proportion of the variation in y can be explained by the variation in the values of x? s2 = Report answer as a percentage accurate to one decimal place.