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

anonymous · Answer

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

dan815 · Answer

hey! ill help ya

dan815 · Answer

xbar means the avg values of x right

anonymous · Answer

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

dan815 · Answer

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

dan815 · Answer

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

dan815 · Answer

the video is probably better
patricJMT good teacher