A Social Scientist Wants to Use Subjects' Number of Hours

Multiple Choice

A social scientist wants to use subjects' number of hours of television watched to predict their score on a test of propensity to violence. Subjects who watch more television do tend to get higher scores on the test. But regressing their violence test score on their hours of television watch explained only 16 percent of the total score. What is the correlation between their hours of television watched and violence test scores?

A) 0.16
B) -0.16
C) 0.40
D) -0.40
E) 0.32