akarags
akarags
Joined: Sep 18, 2013
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December 9th, 2013 at 5:12:09 AM permalink
In a recent trip with the family.....yes I sneak off to play craps nearby. Funny how we always have one not far away? I noticed another fascinating thing that my better half just doesn't find that interesting.
There are math gurus who monitor this site like MathExtremist and they are just what I need so here's the question...
What are the odds of rolling multiple 7's without one 6 or one 8?
Ie...
A 7 is 6 in 36
A 6 or an 8 is 10 in 36....after that I'm mathematically handicapped!
How 'bout 2 7's before a 6or8?
3 7's before a 6or8?
4 7's before a 6or8?
5 7's before a 6or8?
6 7's before a 6or8?
7 7's before a 6or8?

Thanks for any help with this quandary!!!!!
bahdbwoy
bahdbwoy
Joined: Aug 23, 2013
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December 9th, 2013 at 5:44:25 AM permalink
http://stattrek.com/online-calculator/binomial.aspx

i imagine its .375 (6/16) ^ x ?

prob win (a 7) .375 .. 3 trials with 3 wins .0527 (1 in 18.96)
ect

could be wrong just going by what i have seen sally post in the past-- at least what I understood :)
superrick
superrick
Joined: Jul 14, 2010
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December 9th, 2013 at 10:36:47 AM permalink
bahdbwoy
Thanks for your post on this, one of the things that most players have a hard time understanding is problems like this. That is why I say we always need the math guys! When you are trying to figure out some of these claims to fame like rolling 18 fours and 19 tens in one roll.
Quote:

As I mentioned above, all 13 PL-Points only encompassed three numbers (the 4, the 6, and the 10). For me, that in itself was a pretty high accomplishment that is rare as can be. Iíve thrown 13-Pointers before; but never were they restricted to just three different box-numbers.


After reading the about quote some of us did the math, with what information the poster had posted and it worked out to something like he rolled 18 fours and 19 tens in one roll. Then we did the math by asking here on the Wizards board what the probability of rolling that many 4ís and 10ís in one roll would be. The numbers the guys came up with were astronomical!

Iím going to start posting this calculator when we read some of these outlandish claims to fame!



Quote:

bahdbwoy
http://stattrek.com/online-calculator/binomial.aspx

i imagine its .375 (6/16) ^ x ?

prob win (a 7) .375 .. 3 trials with 3 wins .0527 (1 in 18.96)
ect

could be wrong just going by what i have seen sally post in the past-- at least what I understood :)

Note, all my post start with this is just my opinion...! You do good brada ..! superrick Winning comes from knowledge and skill when your betting and not reading fiction http://procraps4u2.myfanforum.org/index.php ...
mustangsally
mustangsally
Joined: Mar 29, 2011
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December 9th, 2013 at 11:24:33 AM permalink
removed
silly

Sally
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akarags
akarags
Joined: Sep 18, 2013
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December 9th, 2013 at 11:59:37 AM permalink
Hey MS Sally, I want to b make sure I read that right. For example the chart shows that to roll 3 7's without rolling a 6 or an 8 would be 1 in 18.96 rolls or also 5%???
Did I read that right? Thanks for your insight and response
tournamentking
tournamentking
Joined: Nov 22, 2013
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December 9th, 2013 at 1:13:14 PM permalink
I have to ask aka: just what does this kind of info do for you, and will it change how you play at the casino? I get how sets and sets of stats make a certain segment excited. But is any of it useful enough that you could expect to perform better in a casino? Thanks.
mustangsally
mustangsally
Joined: Mar 29, 2011
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December 9th, 2013 at 1:18:16 PM permalink
removed
silly

Sally
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akarags
akarags
Joined: Sep 18, 2013
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December 9th, 2013 at 1:26:46 PM permalink
The numbers are fascinating. As I'm sure you're more deeply versed in the "stats", I don't fall into any "segment"
I have no idea if it would help me the next time I play or not? I play sparingly so while I appreciate your curiosity, did I understand the chart correctly?
Thanks!
akarags
akarags
Joined: Sep 18, 2013
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December 9th, 2013 at 1:31:33 PM permalink
WOW! Thank you for the breakdown! It's incredible! You are amazing. I greatly appreciate your time and attention on this!
Thanks MS Sally (I'm being presumptuous on the MS so if I'm not correct, forgive me)
bahdbwoy
bahdbwoy
Joined: Aug 23, 2013
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December 9th, 2013 at 2:41:40 PM permalink
the thing I never was really clear on is if you take a series of dont pass vs pass results and looking for 3 passes in a row how do you determine the start/end of a trial?

pass / dont pass --- is that trial over or do you still complete the set of 3
pass / pass / dont / dont / pass / dont -- how many trials is that? 3

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