You have collected data on the average weekly amount of studying time (T)and grades (G)from the peers at your college. Changing the measurement from minutes into hours has the following effect on the correlation coefficient:
A)decreases the $r _ { T G }$ by dividing the original correlation coefficient by 60
B)results in a higher $r _ { T G }$
C)cannot be computed since some students study less than an hour per week
D)does not change the $r _ { T G }$

Question

Quizplus · Accepted Answer

The correlation coefficient is a unitless measure of the strength and direction of a linear relationship between two variables. Changing the units of measurement does not affect the correlation coefficient.

You Have Collected Data on the Average Weekly Amount of Studying