#1
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Checking some stuff re: RoR
Normal Distribution of Hourly Rate
[ QUOTE ] Bankroll needed = -(standard deviation^2/2*avg, win per hour)ln(the risk you are willing to accept). [/ QUOTE ] Plugging in some numbers: SD: 15 bb/100 WR: 2 bb/100 RoR: 0.1% You'd need 388 bb.... --------------------------------- Questions: 1) Is this correct (the formula)? 2) Is this correct (the result)? 3) Can I use bb/100 and sd/100 in this formula? Edit: At 1% Risk of Ruin, you'd only need 225 bb. Edit: At 3.5 bb/100 and 0.1% RoR, you'd be looking again at requiring only 225 bb... So it obviously becomes much less risky as you have a higher winrate. |
#2
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Re: Checking some stuff re: RoR
from some earlier post
Also, am I correct to assume that the two formulas are the same, just that one isolates B and the other isolates r? B = -(sigma^2/2u)ln(r) r = exp(-2uB/sigma^2) ------ Is this the formula that I should be using? |
#3
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Re: Checking some stuff re: RoR
[ QUOTE ]
from some earlier post Also, am I correct to assume that the two formulas are the same, just that one isolates B and the other isolates r? B = -(sigma^2/2u)ln(r) r = exp(-2uB/sigma^2) ------ Is this the formula that I should be using? [/ QUOTE ] Okay, I'm laughing at myself now. These are the same formula, with the exception of slightly different terminology and one being more compact since it's written in math symbols). However, I'm glad I found the post still, because it had isolated for ROR instead of bankroll as well... I guess these are correct... but someone please give me a "yep" if the third question is on the money too. |
#4
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Re: Checking some stuff re: RoR
bump... #3 is the important one.
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#5
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Re: Checking some stuff re: RoR
Just want to point out that you may be the only poster in the history of 2+2 to reply to yourself three times before anyone else does. [img]/images/graemlins/wink.gif[/img] Also wanted to save you from #4.
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