I If the Coefficient of Correlation Is -0

Multiple Choice

i. If the coefficient of correlation is -0.81, what is the coefficient of determination? ii. If the value of r is -0.96, what does this indicate about the dependent variable as the independent variable increases?
iii. If the correlation between sales and advertising is +0.6, what percent of the variation in sales can be attributed to advertising?

A) 0.6561; it decreases;36%.
B) 0.6561; it increases;36%.
C) 0.6561; it decreases;60%.
D) 0.9; it decreases;6%.
E) 0.9; it increases;60%.