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Suppose you have n objects and for each object you have observations for k+1 variables, X1, X2, ... , Xk and Y.Then a linear regression is an equation of the form E(y) = a + b1x1 + b2x2 + ... + bkxk
where E(y) is the expected value of the variable Y when Xi has the value xi; and where a, and b1, b2, ... , bk are constants.
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What is Full Regression?
Regression :The average Linear or Non linear relationship between Variables.
Given a linear regression equation of equals 20 - 1.5x where will the point 3 15.5 fall with respect to the regression line?
on the lineGiven a linear regression equation of = 20 - 1.5x, where will the point (3, 15) fall with respect to the regression line?Below the line
Is there any relation between regression and linear equation?
Yes.
Does simple linear regression always go through the origin?
No.
Can dummy variables be used in multiple linear regression analysis?
Yes they can.
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