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 C and D above

Question

Quizplus · Accepted Answer

The coefficient of correlation (C) measures the strength and direction of the linear relationship between two quantitative variables, while the coefficient of determination (D) measures the amount of variation in one variable that can be explained by the other variable. Both of these measures provide information about the strength of the relationship between two variables, and they are often used together to fully describe the nature of the relationship. The slope and Y intercept of a simple linear regression equation (A and B) are useful for predicting the value of one variable based on the value of the other variable, but they do not provide information about the strength of the relationship between the variables.

The Strength of the Relationship Between Two Quantitative Variables Can