Re: Jack and Bob (Reef Fish) *heehaws*

Jack wrote

*** Date: Jul 10, 2006 10:13 AM
The population variance sigma^2 is independent of the
sample. It depends only on the distribution. Jack
***


This *morceau* (of ***) appeared in consequence of
my post on which a made the comparison between the
ssd of a sample relative to its mean and relative to
the true Population mean

The above comment is the most stupid one I read in
this News. Revealing unmistakably that he didn´t
notice that HE IS OUT OF CONTEXT.
From this episode a full thread of nonsense between
the TWO CLOWNS of this News: Bob Reef Fisf
(=yurra)and Jack Tomson.


Who is Jack Tomson? Is he a member of the list?




Because an ass ears always other ass (even if it is
far away) Bob (Reef Fish) heehaws too in unison.

_____licas (Luis A. Afonso)


I wrote:

Consequently
The SAMPLE VARIANCE defined usually by:
_____Svar = S0 / N
and the POPULATION VARIANCE _____Pvar= S / N


This is a truly remarkable result. The population variance depends on the sample values. Even if the population variance werre known, it keeps changing. Everytime BASIC generates a new sample, the population variance changes.

Why not apply this concept to the population mean? Even if we know the population mean, its value would depend on the sample values that BASIC generates.

And why not go even further and replace the distribution by the empirical cdf?

Jack



are such that
_____________Svar <= Pvar

As the French use to say

***les beaux esprits *** se rencontrent...
.

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