X 420 610 625 500 400 550 650 480 565
Y 2.80 3.60 3.75 3.00 2.50 2.70 3.50 3.90 2.0 2.95 3.30
Calculate te covarience anf the correlatio coeficient. Comment on the relationship between x and y Determine the least squres line. Draw the scatter diagram and plot the least squres line