If the correlation between variables and is 0, then
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1 markEconometricsLinear regression and OLSThe two regression lines and the correlation coefficientModerateabout 2 min
DSE 2012 Question 7: Linear regression and OLS
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Plain-text version
If the correlation between variables X and Y is 0, then (A) The regressions of Y on X and X on Y intersect at right angles, and pass through (X̅,Y̅) (B) The regressions of Y on X and X on Y do not intersect at right angles, but do pass through (X̅,Y̅) (C) The regressions of Y on X and X on Y intersect at right angles, but do not pass through (X̅,Y̅) (D) The regressions of Y on X and X on Y do not intersect at right angles, and do not pass through (X̅,Y̅)
Linear regression and OLS has come up 74 times in 7 exams since 2008.
What this question tests
This question is on The two regression lines and the correlation coefficient, part of Linear regression and OLS in Econometrics.
How the regression of y on x and of x on y relate to each other and to correlation.
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