Q. A researcher reported the correlation between variable X and Y is r=0.6. Which of the following interpretation is correct?

(a) The X- variable explains 60% of the variability in the Y-variable
(b) The X- variable explains 40% of the variability in the Y-variable
(c) The X- variable causes negative change in 60% of the Y-variable
(d) The X- variable is equal to 60% of the Y-variable