Re: Roulette: what to do after 100 'red'-spins
- From: David Winsemius <doe_snot@xxxxxxxxxxx>
- Date: Mon, 25 Dec 2006 20:50:56 -0600
AngTalunin <wouter@xxxxxxxxx> wrote in
news:33060041.1167090946463.JavaMail.jakarta@xxxxxxxxxxxxxxxxxxxxxx:
This evening I was having a discussion about the chances on a roulette
table.
Suppose we only bet red or black and the wheel has spun 100 times red
in one role (with no black, green between it). What should we bet on
next? Should this be red, black, or doesn't it matter?
If the wheel and the dealer are fair (so every run is indeed random),
it does not matter.
But I read some things about dealers who spin the wheel and throw the
ball the same every time (so the outcome of the run could depend on
the previous run). But can this give you enough information to say
black or red? Or this this just give you a range of number and is the
chance in this range for red and black the same?
You started with the presumption that it was a fair roulette wheel. After
a run of <large number> reds wouldn't you have rather convincing evidence
that it was not a fair wheel? Why weren't you betting long before they got
to 100 in a row?
--
David Winsemius
.
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