Re: Expectation Value Question

In article
<ITSnetNOTcom#virgil-46BBA0.22065306052005@xxxxxxxxxxxxxxxxxxxxxxxx>,
Virgil <ITSnetNOTcom#virgil@xxxxxxxxxxx> wrote:

> In article <1115433467.209097.194560@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>,
> "Matthew Brenneman" <pi2ovr6@xxxxxxxxxxxx> wrote:
>
> > Hi,
> >
> > A simple question.
> > Let x~N(u,s) where u ne 0.
> > What is the expectation value of |x|?
> >
> > TIA,
> >
> > Matt B
>
> u

If u is negative, the expectation of |x| cannot possibly be u.
.

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