Ten boys compete in throwing a cricket ball, and the table shows the height of each boy (x cm) measured to the nearest centimetre and the distance (y m) to which he can throw the ball.

Boy A 122 41 B 124 38 C 133 52 D 138 56 E 144 29 F 156 54 G 158 59 H 161 61 T 164 63 168 67 Calculate the product-moment correlation coefficient. Calculate also the equations of the regression lines of y on x and x on y. (AEB) NOTE: check your value of r by using the regression coefficients obtained in the equations t of the regression lines.