i. A coefficient of correlation r close to 0 (say, 0.08) shows that the relationship between two variables is quite weak.
ii. If the coefficient of correlation is 0.68, the coefficient of determination is 0.4624.
iii. The standard error of estimate measures the accuracy of our prediction.
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. A coefficient of correlation r close to 0 (say, 0.08) shows that the relationship between two variables is quite weak. 
ii. If the coefficient of correlation is 0.68, the coefficient of determination is 0.4624. 
iii. The standard error of estimate measures the accuracy of our prediction.
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

i. A correlation of 0.08 indicates a weak relationship. ii. The coefficient of determination is r^2, so 0.68^2 = 0.4624. iii. The standard error of estimate measures prediction accuracy.

I a Coefficient of Correlation R Close to 0 (Say