1. ## Linear regression Equation?

Hi All,

I need to determine whether two continuous variables are positively associated or not. I believe that this required a simple linear regression (?). But i'm not sure if my formula is correct:

Y= α + ß1

Where ß1 is one of my continuous variables and Y is the other?

Also, I don't think it really matters which variable is the independent or dependent. Does this affect my equation?

2. ## Re: Linear regression Equation?

Originally Posted by chiccaboom
Hi All,

But i'm not sure if my formula is correct:

Y= α + ß1

Where ß1 is one of my continuous variables and Y is the other?
(1) Your equation is not a common (or standard) way to express a simple linear regression model.

(2) The Pearson correlation has the property of symmetry. That is, the correlation between (two variables) X and Y is the same as the correlation between Y and X.

3. ## Re: Linear regression Equation?

Thank you...

What is wrong with my equation? Should it be instead:

Y= α + ß1* random variable ?

4. ## Re: Linear regression Equation?

Originally Posted by chiccaboom
Thank you...

What is wrong with my equation? Should it be instead:

Y= α + ß1* random variable ?
Yes, call it X, and you'll also need an error term because you're expressing the model with the actual values of Y and not the predicted values of Y.

5. ## Re: Linear regression Equation?

Hello i expect to be useful for you. I think it´s this. See the link, and you´ll find the answer:

http://www.statisticshowto.com/how-to-find-a-linear-regression-equation/

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