Hi Swift,
You might find this site useful if you're talking about simple linear regression.
Learn Simple/Linear Regression tutorial, definition, example, formula
Are you using a graphing calculator or are you trying to do this manually?
I need to find the regression equation but I dont know how to find it, I have x & y values from the scatter graph that I have already produced. The exact thing its looking for is " Find the regression equation. State it in terms of the costs and the output. Give numerical values correct to three significant figures." If anybody could help me at all I would be greatly appriecated I am only really looking for the equation to work it out not for someone to just give me the answers.
+rep asual for people who are willing to help
I thank you all in advance.
Hi Swift,
You might find this site useful if you're talking about simple linear regression.
Learn Simple/Linear Regression tutorial, definition, example, formula
Are you using a graphing calculator or are you trying to do this manually?
This site will help you out!
Linear Least Squares Regression
More information at
Linear regression - Wikipedia, the free encyclopedia
Maths Calculator - Regression - Calculation, calculate regression, Simple/Linear Regression is that cheating? as it would be more simple for me because the link you sent me I just cant undertstand what actually is the regression equation (possibly more than one) I am very new too this level of maths still.
Ok I am working this out with pen and paper just came to a snaggle with this working out.... I bet its straight forward but I just cant work it out what are the first scores :s
The example is here; Learn Simple/Linear Regression tutorial, definition, example, formula (step3)
ΣX = 311 on this example so how does ΣX2 = 19359
ΣX2 = Sum of Square First Scores