[Blindmath] statistical formulas

[Ryan Thomas]

For random variables X and Y, the correlation coefficient r is the
covariance between x and y divided by the product of the variances of
X and Y.  Depending on what statistics you're in there are other
identities dealing with sum of squared regression and other terms.  I
hope that's helpful though.

On 10/23/12, Kathy Roskos <kroskos at cox.net> wrote:
> I am new to this list.  I am taking a statistics class online and am having
> trouble getting jaws to read the formulas.  Does anyone out there know about
> calculating r values for correlational data?
>
> any advice would be appreciated.
>
> Kathy
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