Friend at work gave me some problems to solve, problem is its been years. Looks like greek to me know. Guidence much appreciated.

[Danni2hats]

Thanks to anyone that can at least point me in the right direction.

 

[JeffM]

He is making you do least-squares regression by hand?

Excel can do it in a flash. Get help at an excel site on how to set up regression calculations.

 

[Otis]

Friend at work gave me some problems to solve …

Why?

So, Danni, where are you stuck? Somebody has calculated the summations ∑x_i and ∑y_i. Was that you? Or, do you need help understanding the sigma (∑) notation?

Let us know what you already understand. Show us anything you've been able to try, so far. You can also ask specific questions about the part(s) you don't understand.

Please ensure that you've read the forum's guidelines, too (i.e., Read Before Posting notice). Thanks!

?