When two variables are not correlated at all,the correlation coefficient would be _______.
A)-1
B)0
C)1
D)-2
E)none of the above

Question

Quizplus · Accepted Answer

When two variables are not correlated at all, there is no linear relationship between them. The correlation coefficient is a measure of the strength and direction of a linear relationship between two variables, ranging from -1 (perfect negative correlation) through 0 (no correlation) to +1 (perfect positive correlation). Therefore, when two variables are not correlated, the correlation coefficient would be 0.

When Two Variables Are Not Correlated at All,the Correlation Coefficient