Question
Asked Nov 22, 2019
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Use the general equation for the least square regression line to show that this line always passes through the point (x,y) * bars above the x and y.That is, set x=x(with a bar above the x) and show that the line predicts that y=y (with a bar above the y).

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Expert Answer

Step 1

The linear regression equation always passes through (x, y)

y =a + bx

Let there be two variables: x & y.

y – Regression or dependent variable or explained variable
x – Independent variable or predictor or explanatory variable

Step 2

On minimizing the least squares equation, here is what we ...

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y= a+bx ΣΥ-Σα+Συ ΣΥ-m+bΣ: a and b arevar iables ΣΥ па +b η n y =a+bx

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Statistics

Advanced Topics in Statistics

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