- #1
iVenky
- 212
- 12
I read about "Linear regression" and I want to make sure that what I read is right
Just tell if these equations are right-
Slope of line of regression for y on x is given by
[itex] m=\frac{E(XY)-E(X)E(Y)}{E(X^{2})-[E(X)]^{2}}
\\ m=\frac{Cov(XY)}{Var(X)}
\\ m=\frac{ρσ_{x}σ_{y}}{σ_{x}^{2}}
\\ m=\frac{ρσ_{y}}{σ_{x}}
\\and\ the\ equation\ is
\\y-\bar{y}= m (x-\bar{x})
[/itex]
Similarly the slope of line of regression of x on y is given by
[itex]
\\
\\ m=\frac{ρσ_{x}}{σ_{y}}\\and\ the\ equation\ is
\\x-\bar{x}= m (y-\bar{y})[/itex]Just tell me if the above equations are right.
Thanks a lot
Just tell if these equations are right-
Slope of line of regression for y on x is given by
[itex] m=\frac{E(XY)-E(X)E(Y)}{E(X^{2})-[E(X)]^{2}}
\\ m=\frac{Cov(XY)}{Var(X)}
\\ m=\frac{ρσ_{x}σ_{y}}{σ_{x}^{2}}
\\ m=\frac{ρσ_{y}}{σ_{x}}
\\and\ the\ equation\ is
\\y-\bar{y}= m (x-\bar{x})
[/itex]
Similarly the slope of line of regression of x on y is given by
[itex]
\\
\\ m=\frac{ρσ_{x}}{σ_{y}}\\and\ the\ equation\ is
\\x-\bar{x}= m (y-\bar{y})[/itex]Just tell me if the above equations are right.
Thanks a lot
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