i. What is the range of values that the coefficient of determination can assume? ii. What is a measure of the scatter of observed values around the regression line called?
iii. If the correlation between sales and advertising is +0.6, what percent of the variation in sales can be attributed to advertising?
A) 0% to 1%; standard variation;36%.
B) both positive and negative values; standard deviation;6%.
C) 0% to 100%; standard error of the estimate; 36%.
D) 0% to 100%; standard variation;36%.
E) both positive and negative values; standard error of the estimate; 36%.

Question

Quizplus · Accepted Answer

The coefficient of determination ranges from 0% to 100%. The measure of scatter around the regression line is the standard error of the estimate. The percent of variation in sales attributed to advertising is 36% (correlation squared, 0.6^2 = 0.36).

I What Is the Range of Values That the Coefficient