Consider the following data :
`{:(x,5,7,8,4,6),(y,2,4,3,2,4):}`
What is the regression equation of y on x?

Find cov (x, y) for the following data : {:(x,3,4,5,6,7),(y,8,7,6,5,4):}

Find the equations of the two lines of regression for the following observations : (3, 6), (4, 5), (5, 4), (6,3), (7,2). Find the estimation of y for x = 2.5.

Two regression lines are given as 3x-4y+8=0 and 4x-3y-1 = 0 Consider the following statements : 1. The regression line of y on x is y = (3)/(4) x +2 2. The regression line of x on y is x = (3)/(4) y + (1)/(4) . Which of the above statements is/are correct ?

Consider the following system of equations x+2y=4,2x+5y=9 Solve the system of equations.