## anonymous 3 years ago b1= r * (Sy/Sx) How do I get the number for r (correlation) given the averages of X and Y and their standard deviations?

1. anonymous

@asnaseer @bahrom7893 @iHelp @jim_thompson5910 @karatechopper

2. anonymous

Statistics? fun. $r = sxy/((sx)(sy))$ where sx and sy are you standard devaitions and sxy is:

3. anonymous

Which is the average of your means.

4. anonymous

im still a little confused. can you tell me how they got b1 based on the data presented?

5. anonymous

6. anonymous

@.Sam. @eyust707 @satellite73

7. anonymous

missing a lot of the page

8. anonymous

$S_{xy}=\frac{1}{n-1}\sum_{i=1}^n(x_1-\overline{x})(y_1-\overline{y})$ i can understand, we just need these numbers

9. anonymous

well then ill upload it as an excel file rather than a PDF because PDF gets choppy

10. anonymous