If the regression coefficients be given by `b_(yx)=(2)/(9)` and `b_(xy)=2` and `theta` be angle between the regression lines find the value of `theta.

If the regression coefficients b_(xy)=1.6 and b_(yx)=0.4 , and theta is the angle between the two lines of regression, then the value of tantheta is

If the regression coefficients be given b_(yx)=1.6 and b_(xy)=0.4 then find the sum of the slopes of the two regression lines.

If the regression coeffcients for the variable x and y are b _(xy) =1 and b _(yx) = 1/2 then find the angle between the regression lines.

If the regrassion coefficient of Y on X is 1.6 that of X on Y is 0.4 , and theta be the angle between two regression lines , find the value of tan theta

If the two coefficients of regression are - 0.6 and – 1.4, find the acute angle between the regression lines.

The angle between the regression lines: x-2y+3=0, 4x-5y+1=0 is

If b_(yx)=0.89 and b_(xy)=0.85 , find r.

If costheta=3/4 , then find the value of 9tan^2theta+9 .

If the angle between two lines regression is 90^(@) , then it represents

If cos2theta=sin4theta , where 2theta and 4theta are acute angles, find the value of theta .