For the lines of regression `4x-2y=4and2x-3y+6=0`, find the mean of 'x' and the mean of 'y'.

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 the two lines of regression are 4x-5y+33=0and20x-9y-107=0 , find the variance of y when sigma_(x)=3 .

The two lines of of regressions 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 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.

For the given lines of regression, 3x – 2y = 5 and x - 4y = 7, find coefficient of correlation r(x, y)

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

If the two lines of regression are 3x - 2y+1 = 0 and 2x -y-2=0 , then bar x+bary is equal to:

For the given lines of regression, 3x – 2y = 5 and x - 4y - 7, find regression coefficients byx and bxy

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

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