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jpisani
Senior tranceaddict
Registered: Mar 2003
Location: asdf
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I've done that before. I went in, bought a Sprite, went outside, opened it, it was a winner. I went back inside, got another, went outside, another winner, this happened 4 or 5 times, then the guy made me open it in the store, and threw me all off, thus resulting in a loser. Needless to say, riding your bike home with 5 or 6 bottles of sprite (5 of them capless) is a bit hard.
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Ron & Fez! Noon to Three!
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Jan-25-2005 05:29
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töbias
Supreme tranceaddict

Registered: Sep 2004
Location: Melbourne.
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Re: Re: Re: Re: I just won Lucky 20 for the seventh time in a row.
| quote: | Originally posted by wwu.punisher
Well... honestly, it seems like the odds would be 1 in 20 every time because I'm not drawing from the same pool. (In other words, it's a different pool every time.) HOWEVER, I have bought ALL SEVEN of these sodas at the same campus store. So... what now? |
If you had bought seven at the same time, and before you opened them wondered you odds of them all being winners then you are starting to look at big odds.
A simple example, having a child. Assuming the chance of a boy is 50% and girl is 50%, then the chances of having 5 girls in a row is 3.1%, quite low.
Now if you already had 4 girls, and you were wondering what the odds of having another girl are you will realise that your sperm didn't know you had 4 girls, and neither did the egg being fertilised, so your odds of having a girl are totally independent of previous events, so they are 50%.
It quite fair to say that after you have 5 girls you say "what are the chances of that?", and you could work out its 3.1%. But upon trying to have another child your odds at that time of having anothe girl are 50%.
Perhaps we should have done this in the maths thread.
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"The first stage of the great adventure has concluded happily, and here I am installed in Mexico, although I have no idea about the future" Che Guevara
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Jan-25-2005 06:14
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mezzir
BEES?

Registered: Nov 2002
Location: assachusetts
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nah it may be flawed logic cause i'm a bit messed up 
but stilll
say you had a pool of 49, and you chances of getting one were 1 in 7
therefore, there are 7 winners
the first one would be 1:7, or 7:49
but after that, you have a chance of 6:48
thats 1:8 my friend 
however, since we're dealing with a supposedly infinite pool (lets just say that to make it easy. yes its the same store every time, but that should only matter if there's a specified number of winners per case, and thats not the case here)
so anyways, so get 1 in 7 the first time, 1:7
the next time, the odds have not changed, still 1:7 even though you just won
however, in a string of probabilities, you multiply the odds
so 1:7 the first time times 1:7 the second time = 1:49 odds that you will get winners on the first two picks
independantly, you get 1:7 on each try, but the more times in a row you win, the slimmer the odds
people know this to be true, but mistakenly think it applies to roulette tables, hence why they now have lil displays of past winners
people think that since, lets say black 18 hasn't won in ages, that its due to win
however, since you're drawing from a new pool every time, the odds are still exactly the same
[/ppd mode]

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http://www.youtube.com/mezzir
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Jan-25-2005 06:31
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trance85
Senior tranceaddict

Registered: Nov 2004
Location: Denver, United States
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Well I didn't read the threads before this one, but if its a 1 in 12 win thing, then EACH time you go in, you have a 1/12 chance of opening a winner (obviously). If we were to say something like "Whats the chances of this guy opening up a winner 7 times in a row?" -- the odds would be different, I'm too lazy to figure out.
Anyways pissed me off once, I used to work a shit job as a clerk, and these jackasses came in one day with a free winner cap, then they got their sprite or whatever soft drink, opened it, got another winner, so they went to get another, opened it, another winner, then that little streak ended. They all got a free soft drink to go home with though so oh well not like I care, just means I don't have to ring anything up.
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-trance85
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Jan-25-2005 08:41
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