The Two Regression Lines Are Perpendicular If. For the variables x and y the regression equations are given as 7x 3y 18 0 and 4x y 11 0 i Find the arithmetic means of x and y. Which of the above statements isare correcta1 onlyb2 onlycBoth 1 and 2dNeither 1 nor 2Correct answer is option D.
Feb 05 2020 If the correlation coefficient rxy 0 then the two lines of regression are parallel to each other2. And 2 at the point of intersection the straight angle on one side of the first line is cut by the second line into two congruent angles. This problem has been solved.
The two regression lines are perpendicular to each other.
If the CorrXY 0 then the regression lines will be a parallel to each other b perpendicular to each other. The regression lines cut each other at the point of average of X and Y. Show transcribed image text. The derivative of y2 is 2ydydq so we have dSdq 2 SUM -x sinqy cosq-x cosq-y sinq We set this to zero so we can immediately divide out the factor of 2.
