Varience and multi-tabling

[Rev. Good Will]

It is quite obvious that multi-tabling reduces the hourly rate for that table slightly since you can't focus completely on the table as you would if you did that table alone, but what effect does it have on your varience? Does it depend on the person (a person conservative by nature would by instinct make more conservative desicions and reduce varience)?

[pyroponic]

I believe playing 7-8 tables increasies your variance significantly. If we give about 15 BB being the standard deviation for each table, than with 8 tables your standard deviation will be around 120 BB. At $3/6, that's around $720. That's why I recommend a larger bankroll than the recommended 300 if you are playing 6 or more tables.

[sfwusc]

I think my SD is like 17bb per 100 hands.

I six table and 500BB is what I play at currently.

SFWUSC

[StacysMom]

Incresing the speed at which u see independent events doesnt increase the variation. It only traverses it faster.

[sfwusc]

True. I still like playing with 500BB since I bonus whore casinos and stuff too.

SFWUSC

[GeoC]

Assume you can play 100 hands per hr using 2 tables. Then 8 tables would be 400 hands per hr. Your per hand SD is 1.7 units, (sqrt of 100 x 17) and your 8 table sd would be 1.7 times sqrt 400 or 34 units.

[sfwusc]

Ok what is the difference between playing

1 table for 4 hours or 4 tables for one hour?

None. Multitabling doesnt change anything long term.

SFWUSC

[magic_man]

[ QUOTE ]
I believe playing 7-8 tables increasies your variance significantly. If we give about 15 BB being the standard deviation for each table, than with 8 tables your standard deviation will be around 120 BB. At $3/6, that's around $720. That's why I recommend a larger bankroll than the recommended 300 if you are playing 6 or more tables.

[/ QUOTE ]

I might be wrong about this, but I don't think this is correct. If your std. dev. is 15 BB/hr at one table, then playing 8 tables your std. dev. will be 15 * sqrt(8) =~ 42.4 BB/hr. Of course, if you are measuring in BB/100 hands, then your variance will not change. Also, since your $won/hr will increase also, your hourly variance relative to your win rate will actually DECREASE. For example, if playing 1 table, you get 2 BB/hr and standard deviation 15BB/hr - the ratio is 2/15 or 0.133. Playing 8 tables you may get 1.5BB/hr and the same standard deviation, so that your total win rate is 12BB/hr with std. dev. 42.4. The ratio is then 12/42.4 or 0.283. Since your risk is related to the ratio of win rate to std. dev, your risk is actually lower playing 8 tables. This is simply because you are playing more hands per hour, so you are approaching the long run much faster. Really though, it's much easier to just measure all these numbers in BB/100 hands, in which case none of the values will be affected. Someone correct me if I'm wrong here?

However, I don't really think this was the OP's question. What he wants to know is if your std dev per table changes when you multitable. I don't know the answer, but my guess is "not by much." Std dev seems to be "relatively close" between various players, so I don't think multitabling will change it greatly.

~MagicMan

[Rev. Good Will]

My question regaurds the quality of the desicions you make, one cannot focus as much on 1 table if they're playing 4 total as much as them playing only 1 table. So with slightly lower quality decisions, does it impact your varience much?

[iluzion]

[ QUOTE ]
My question regaurds the quality of the desicions you make, one cannot focus as much on 1 table if they're playing 4 total as much as them playing only 1 table. So with slightly lower quality decisions, does it impact your varience much?

[/ QUOTE ]

I focus more when playing 3-4 tables than I do when im playing 1. If I only have one table going, I'm sooo easily distracted, I'll be chatting on AIM, reading 2+2, AND watching TV. If I'm four tabling, thats all I'm doing.