00:01
Table of values x and y and you need to calculate the correlation coefficient rounded to three decimal places.
00:09
So if you had to find this by hand over here where i just drew a star in red, this can be really complicated.
00:19
What you would have to do in order to do this by hand is you would need to, you already have x and you already have y, you would need to multiply those two for each of those values to get x times y then square your x and square your y find all of your totals and then use this formula to find the correlation coefficient so instead of doing all of that what i'm going to do is i'm going to show you how to do it on your graphing calculator um so this will work for a t i 84 or 83 the first thing that you need to do is you need to make sure that your diagnostic is on your diagnostic is on your diagnostic will give you r.
01:03
And r is what we need in order, r is representing your correlation coefficient here.
01:10
So in order to make sure your diagnostic is on, you're going to hit your stat button.
01:15
Then you are going to hit edit.
01:18
I'm sorry, that's the next part.
01:22
The first thing that we need to do is you need to hit second zero for your catalog.
01:28
And then you need to scroll down as in alphabetical order, you go scroll all the way down.
01:32
And so you get to the d's and you'll see a diagnostic on.
01:36
The first one's a diagnostic off and then there's a diagnostic on...