The strength of the relationship between two quantitative variables can be measured by:
A)The slope of a simple linear regression equation.
B)The Y intercept of the simple linear regression equation.
C)The coefficient of correlation.
D)The coefficient of determination.
E)Both The coefficient of correlation and The coefficient of determination.

Question

Quizplus · Accepted Answer

The strength of the relationship between two quantitative variables can be measured by the coefficient of correlation, which indicates the direction and strength of the relationship between the variables. The coefficient of determination, on the other hand, measures the proportion of variation in one variable that can be explained by the other variable in a regression analysis. Both the coefficient of correlation and the coefficient of determination measure the strength of the relationship between two variables, so option E is the best choice.  The slope and Y intercept of a simple linear regression equation indicate the line's position and angle but not the strength of the relationship between the variables.

The Strength of the Relationship Between Two Quantitative Variables Can