Which value of the correlation coefficient r indicates a stronger correlation than 0.72?
A) 0.65
B) -0.75
C) 0.60
D) -0.70
E) 0.55

Question

Quizplus · Accepted Answer

The correlation coefficient r measures the strength and direction of a linear relationship between two variables. Its value ranges from -1 to 1, where 1 means a perfect positive linear correlation, -1 means a perfect negative linear correlation, and 0 means no linear correlation. The strength of the correlation is determined by the absolute value of r. A value of -0.75 has a stronger correlation than 0.72 because its absolute value (0.75) is greater than the absolute value of 0.72.

Which Value of the Correlation Coefficient R Indicates a Stronger