If the two regression lines are 4x + 3y + 7 - 0 and 3x + 4y + 8 = 0. Find mean of x and y.

From the equation of the two lines, 4x + 3y +7=0 and 3x + 4y +8=0 , Find the mean of x and y .

Given two regression lines 4x + 3y + 7=0 and 3x + 4y + 8=0 , determine. The coefficient of correlation

The two lines of regressions are 4x + 2y - 3 =0 and 3x + 6y +5 =0 . Find the correlation coefficient between x and y .

Given two regression lines 4x + 3y + 7=0 and 3x + 4y + 8=0 , determine. The regression line of x on y

Given two regression lines 4x + 3y + 7=0 and 3x + 4y + 8=0 , determine. The regression line of y on x

If the two lines of regression are 2x-y-4=0 and 9x-2y-38=0 , then the means of x and y variates respectively are

If two lines of regression are 4x + 2y - 3=0 and 3x + 6y + 5 = 0 , then find the correlation coefficient.

The two lines of regression are x+ 2y- 5= 0 and 2x + 3y - 8=0 and the variance of x is 12. Find the variance of y and the coefficient of correlation.

The equations of two regression lines are : 13x-10y+11=0 and 2x-y-1=0 . Find the ratio between mean of y serise and mean of x series.

Two regression lines are represented by 2x+3y -10=0 and 4x + y-5=0 Find the line of regression of y on x.