MISCELLANEOUS EXERCISE - 3 - Fill in the Blanks
1. If bxy < 0 and byx < 0 then ‘r’ is Negative
2. Regression equation of Y on X is (y – y) = bxy (x – x)
3. Regression equation of X on Y is (x – x) = bxy (y – y)
4. There are 2 types of regression equations.
5. Corr (x, −x) = -1
6. If u =(x -a)/c and v =(y – b)/d then bxy =(c/d) buv
7. If u = (x – a)/c and v = (y – b)/d then byx =(d/c) buv
8. | bxy + byx| ≥ 2 IrI
9. If byx > 1 then bxy is < 1
10. bxy . byx = r2