jagan mohan <[EMAIL PROTECTED]> wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> Repected Members,
>
> Coefficient of Skewness (beta-1) = (3rd moment)^2/ (2nd moment)^3
>
> Coefficient of Kurtosis (beta-2) = (4th moment)/(2nd moment)^2.
>
> where do I get proofs for these two.Please let me know about
> this.
You don't prove definitions.
Normally people look at the (signed) square root of beta_1 and call that
skewness. beta_1 itself doesn't tell you about the direction the data is
skewed in.
Glen
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