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

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

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

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.

If the line of regression of x on y is 3x + 2y - 5 = 0 , then the value of b_(xy) is

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

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

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

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

Two lines of regressions are represented by 4x + 10y = 9 and 6x + 3y = 4 . Find the line of regression y on x.