Consider the following statements:
1) If the correlation coefficient rxy = 0, then the two lines of regression are parallel to each other.
2) If the correlation coefficient rxy = + 1, then the two lines of regression are perpendicular to each other.
Which of the above statements is/are correct?
1
1 only
2
2 only
3
Both 1 and 2
4
Neither 1 nor 2