What is the numerical index that describes the relationships between two variables?
A)regression coefficient
B)chi index
C)correlation coefficient
D)psi index

Question

Quizplus · Accepted Answer

The numerical index that describes the relationship between two variables is called the correlation coefficient. It measures the strength and direction of a linear relationship between two variables, ranging from -1 to 1. The closer the correlation coefficient is to 1, the stronger the positive relationship, while the closer it is to -1, the stronger the negative relationship. A correlation coefficient of 0 indicates no relationship between the variables.

What Is the Numerical Index That Describes the Relationships Between