Poker Poker Poker!: [vpFREE] Re: Here we go again?

--- In vpFREE@yahoogroups.com, b.glazer@... wrote:
>
> > 3e. Re: Here we go again?
> > Date: Tue Jan 15, 2008 5:13 pm ((PST))
> >
> > --- In vpFREE@yahoogroups.com, "Luke Fuller" wrote:
> > >
> > > Why does the variance changes in multi-line, depending on the
> > > denomination per line?
> > >
> > > Or, to put it another way....
> > >
> > > Why is the variance different if I play 5 cent 100-line vs.
> > > $1 5-line vs. $5 1-line? Either way, it's $25 per pull.
> > >
> > > Or, maybe, I misunderstood?
> > >
> > >
> >
> > You need to understand the concept of covariance. Because so
many
> > hands share the same deal and only the draw is separate, it
> > increases total variance vs a game where every deal and draw is
a
> > separate event. A single play FPJB game has a variance of a bit
> > over 19, as I recall. The same game in hundred play has a
variance
> > of something like 214. See the Jazbo or Wizard of Odds links to
N
> > Play discussions.
> >
>
> OK, now I'M the one confused. It's been way too many years since
I had my statistics courses to remember the difference between
variance and co-variance (and giving me the formulas won't educate
me anymore).
>
> Please help me with "plain english" -- the $1 5-play vs the $5
single-line game, for example -- it's my understanding that if I'm
putting the same money at risk per "pull", the multi-line game will
give me less peaks and valleys, with the same long-term expectation
per dollar risked.
>
> Is that correct, or does the higher variance (described above, eg,
19 vs 214 for single vs 100-play), mean I'm wrong?
>
> Thanks!
>
> --BG
>
> =================
>

As Harry, MrOE and others have said, when you take that same coin in
per hand there is a reduction in BR swings in n play which has one
deal and many draws vs single play which has one deal and one draw.
N play can divide one possible result into many with the same CI per
deal. It would be a high compliment to describe my grasp of
statistics as tenuous, but I usually have a firm grasp of common
sense. In other words, it would be a mistake to assume that a
reasonable bankroll for dollar single play video poker would be the
same for dollar n play. A big mistake.

Chandler