An index number,constrained to fall between -1.0 and +1.0,that communicates both the strength and the direction of a linear relationship between two scale variables is a:
A)Standard deviation.
B)Correlation coefficient.
C)Covariant.
D)Standard error.

Question

Quizplus · Accepted Answer

The correlation coefficient is a measure of the linear relationship between two scale variables. It ranges from -1 to +1, with -1 indicating a perfect negative linear relationship, 0 indicating no linear relationship, and +1 indicating a perfect positive linear relationship.

An Index Number,constrained to Fall Between -1