I get your point. I see this sequence as an example of how good dialogue can lead
to education and interesting literary exchange.
Howard S. Hoffman
Herman Rubin wrote:
> In article <[EMAIL PROTECTED]>,
> Howard S. Hoffman <[EMAIL PROTECTED]> wrote:
> >I stand corrected. I had not considered the requirement of homogeniety of
> >varience. Sure, if U=2 V must be 0. hence, for certain values of U , V can be
> >predicted exactly.
> > Howard S. Hoffman
>
> Homogeneity of variance is not enough, either. It is easy to
> construct examples do the conditional means and variances are
> the same, and yet the two random variables are not independent.
>
> If the condition expectation of EVERY function of V is
> independent of U, the random variables are independent.
> --
> This address is for information only. I do not claim that these views
> are those of the Statistics Department or of Purdue University.
> Herman Rubin, Dept. of Statistics, Purdue Univ., West Lafayette IN47907-1399
> [EMAIL PROTECTED] Phone: (765)494-6054 FAX: (765)494-0558
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