I If There Is Absolutely No Relationship Between Two Variables

Multiple Choice

i. If there is absolutely no relationship between two variables, what will Pearson's r equal?
ii. If the coefficient of correlation is 0.80, what is the coefficient of determination?
iii. If the coefficient of determination is 0.81, what is the coefficient of correlation?

A) zero (0) ; 0.64; 0.9 or -0.9.
B) zero (0) ; 0.64; 0.09.
C) one (1) ; 0.64; 0.6561.
D) one (1) ; 0.64; 0.9 or -0.9.
E) zero (0) ; 0.8944; 0.6561.