MISCELLANEOUS EXERCISE - 3 - State whether each of the following is True or False.

1. Corr (x,x) = 1 – True

2. Regression equation of X on Y is y − y = byx (x − x ) – False

3. Regression equation of Y on X is y − y = byx (x − x )  – True

4. Corr (x,y) = Corr (y,x)  – True

5. bxy and byx are independent of change of origin and scale. – False

6. ‘r’ is regression coefficient of Y on X – False

7. byx is correlation coefficient between X and Y – False

8. If u = x − a and v = y − b then bxy = buv  – True

9. If u = x − a and v = y − b then rxy = ruv  – True

10. In the regression equation of Y on X, byx represents slope of the line.  – True