@awesomead It is hurtful to a fairly large proportion of people that beleive that God is supreme. All others are his creation and cannot be compared to him in any aspect, be it physical or any other attributes. This kata description mentioned "doing God's job" which is neither possible nor respectful.

Either this should be

1. Deleted
2. Or The description should be modified to remove You have to do God's job.
3. Or If the platform doesn't give importance to people's belief being hurt, they should atleast provide a button to hide it (hide from list of kata as well from the unfinished list of kata from individual's profile)

thank you

Thankyou Jolaf and Giacomo Sorbi to improve my first kata.

Wow, you beat my solution.

You didn't check for negative numbers.

OK! Sir.

You are my senior. Tell me what to do.

I am also not a native English speaker.Should I add the forumla?. Also, I added wikipedia link as well changing its title to "Linear Regression Y on X" as suggested by Giacomo Sorbi.

I used the following formula (E stands for Sigma)

a = (Ex^2)(Ey) - (Ex)(Exy)
----------------------
n(Ex^2) - (Ex)^2

b = n(Exy) - (Ex)(Ey)
-----------------
n(Ex^2) - (Ex)^2

I think, these formulas are easy.

Thankyou for all of you taking time to review this kata.Please provide a good link on the concept as I do not studied it online. I learned it from my textbook.