i. The technique used to measure the strength of the relationship between two sets of variables using the coefficient of correlation and the coefficient of determination is called regression analysis.
ii. In order to visualize the form of the regression equation, we can draw a scatter diagram.
Iii) The least squares technique minimizes the sum of the squares of the vertical distances between the actual Y values and the predicted values of Y.
A) (i), (ii) and (iii) are all correct statements
B) (i) and (ii) are correct statements, but not (iii).
C) (i) and (iii) are correct statements but not (ii).
D) (ii) and (iii) are correct statements but not (i).
E) All statements are false

Question

i. The technique used to measure the strength of the relationship between two sets of variables using the coefficient of correlation and the coefficient of determination is called regression analysis. 
ii. In order to visualize the form of the regression equation, we can draw a scatter diagram.
Iii) The least squares technique minimizes the sum of the squares of the vertical distances between the actual Y values and the predicted values of Y.
A) (i), (ii) and (iii) are all correct statements
B) (i) and (ii) are correct statements, but not (iii).
C) (i) and (iii) are correct statements but not (ii).
D) (ii) and (iii) are correct statements but not (i).
E) All statements are false

Quizplus · Accepted Answer

Regression analysis involves more than just measuring the strength of relationships; it models the relationship. A scatter diagram is indeed used to visualize the form of the regression equation, and the least squares technique minimizes the sum of the squares of the vertical distances between actual and predicted Y values.

I the Technique Used to Measure the Strength of the Relationship