Let X and Y represent prices (in Rs) of a commodity in Kolkata and Mumbai respectively. It is given X̅ = 65, Y̅ = 67, σX = 2.5, σY = 3.5 and r(X, Y) = 0.8. What is the equation of regression of Y on X ?

Let X and Y represent prices (in Rs) of a commodity in Kolkata and Mum

1.	Let X and Y represent prices (in Rs) of a commodity in Kolkata and Mumbai respectively. It is given X̅ = 65, Y̅ = 67, σX = 2.5, σY = 3.5 and r(X, Y) = 0.8. What is the equation of regression of Y on X ?
A.	Y = 0.175X - 5
B.	Y = 1.12X - 5.8
C.	Y = 1.12X - 5
D.	Y = 0.17X + 5.8
Answer» C. Y = 1.12X - 5