Question

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The accountant for a small business correlated the weekly advertising budget and weekly sales figures for one years. Letting x represent advertising dollars and y represent sales dollars, the accountant found the following x̅=1200; mean y=8400; mean xy=10,100,000; Sx=108; and Sy= 246

Question: calculate the correlation coefficient

Answer 1

You do realize you have everything needed to do this don't you?

Answer 2

hey! ill help ya

Answer 3

xbar means the avg values of x right

Answer 4

Yes, I learned it about couple of month ago, but now I am very confused(again)

XOX

Answer 5

http://mathworld.wolfram.com/CorrelationCoefficient.html

Answer 6

https://www.youtube.com/watch?v=PtYVrF_WT3A

Answer 7

the video is probably better
patricJMT good teacher