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### Craps

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Date: 5/24/96 at 14:41:15
From: Anonymous
Subject: Craps

Dear Dr. Math,

Currently, I am a high school student who is studying the
probability and outcome of the game craps. I would be grateful if you
could send me any information that you have pertaining to this game.

Thank you for your time. Mike D.
```

```
Date: 5/24/96 at 18:43:35
From: Doctor Sarah
Subject: Re: Craps

Hi there -

Here's some information about craps from the Web (but see the
corrections below, sent in by an experienced reader):

HOW TO PLAY CRAPS - Victor H. Rover

http://www.iaw.com/casino/cyber/craps.html
_____________________________________________________________________

Date: Thu, 20 Aug 1998 01:35:55 -0400 (EDT)
From: Tina/splinter

A bit of history... I dealt Dice for years and am now at the
supervisory level. At the site listed above, Romer is correct,
you can join the game at any time during a shooter's "hand."
His mistake is in saying that you can not make a passline bet
with odds if the point is already established, and in failing to
say that you may not make a don't pass bet when a point has been
established.
_____________________________________________________________________

There's also a rec.gambling.craps newsgroup that has a Frequently

http://www.conjelco.com/faq/craps.html

Here's a question from it about odds:

Q: C3 What are "Odds"?
A: C3 (Matt Wilding, Ken Elliott III)

Casinos allow a player to place "odds" on pass, don't pass, come, and
don't come bets after a "point" has been established. If the bet on
which odds are placed wins, the odds bet is paid fairly. This means
the odds on pass and come bets are paid 2-1 for the 4 and 10, 3-2 for
the 5 and 9, and 6-5 for the 6 and 8. The odds for don't pass and
don't come bets are paid 1-2 for the 4 and 10, 2-3 for the 5 and 9,
and 5-6 for the 6 and 8 (this is called "laying" odds).

The player should make odds bets that can be paid exactly, or the
dealer will pay off by rounding down. Odds on the pass line and
come bets should be a multiple 5 if the point is 6 or 8 and a multiple
of 2 if it's a 5 or 9. (Don't betters can figure this out themselves.)

Casinos advertise the maximum odds bets they allow as the
maximum amount "times" the original bet the odds bet may be (for
don't pass and don't come bets, it's the maximum amount "times" the
maximum only enough to allow you to make an odds bet that can be
paid exactly.

A player can modify his odds bets at any time.
_______________________________________________

What special terminology is used at the Craps table?
How is Craps played?
What are "Odds?"
What is the house advantage on 10x odds?
What are "Come" and "Don't Come" bets?
What are all those other bets?
What are the odds for all these bets?

I recommend you investigate them for yourself - there's a lot of
information available at this site.

-Doctor Sarah,  The Math Forum
Check out our web site!  http://mathforum.org/dr.math/
```
Associated Topics:
College Probability
High School Probability

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