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Question
Regression equation of X on Y is `("y" - bar "y") = "b"_"yx" ("x" - bar "x")`
Options
True
False
Solution
This statement is False.
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RELATED QUESTIONS
The following table gives the aptitude test scores and productivity indices of 10 workers selected at random.
| Aptitude score (X) | 60 | 62 | 65 | 70 | 72 | 48 | 53 | 73 | 65 | 82 |
| Productivity Index (Y) | 68 | 60 | 62 | 80 | 85 | 40 | 52 | 62 | 60 | 81 |
Obtain the two regression equations and estimate the productivity index of a worker whose test score is 95.
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| Y [dependent Variable] | 18 | 12 | 10 | 8 | 7 | 5 |
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Corr (x, x) = _____
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byx = ______
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If bxy < 0 and byx < 0 then 'r' is __________
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If bxy < 0 and byx < 0 then ‘r’ is __________
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There are __________ types of regression equations.
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If u = `"x - a"/"c" and "v" = "y - b"/"d"` then bxy = _______
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State whether the following statement is True or False.
Regression equation of Y on X is `("y" - bar "y") = "b"_"yx" ("x" - bar "x")`
State whether the following statement is True or False.
Corr (x, y) = Corr (y, x)
State whether the following statement is True or False.
bxy and byx are independent of change of origin and scale.
‘r’ is regression coefficient of Y on X
State whether the following statement is True or False.
byx is correlation coefficient between X and Y
State whether the following statement is True or False.
If u = x - a and v = y - b then rxy = ruv
Compute the appropriate regression equation for the following data:
| x (Dependent Variable) | 10 | 12 | 13 | 17 | 18 |
| y (Independent Variable) | 5 | 6 | 7 | 9 | 13 |
If bxy < 0 and byx < 0 then 'r ' is ______.
