will_doyle
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what are the odds of you having £100,000 and £250,000 as the 2 last boxes on deal or no deal
one of them being your box you chose
there are 22 boxes
and before the game you have to chose randomly one of the boxes to be your box
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Russ
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quote: Originally posted by will_doyle
what are the odds of you having £100,000 and £250,000 as the 2 last boxes on deal or no deal
one of them being your box you chose
there are 22 boxes
and before the game you have to chose randomly one of the boxes to be your box
7 to the power of 4
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adiohead
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u2u Pow
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RichR
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watch 21 
initially its one in eleven that you would have one of the top two prizes at the start of the game but it all goes into statistics if you're offered a swap at the end and you're at better odds to swap than to stick
[Edited on 20-01-2012 by LiVe LeE]
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Ian
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Multiply the individual probabilities. Use the likelihood of not choosing the box you want to end up with rather than the odds of finding box 1 or box 2 or box 3 etc because it doesn't matter which of the non target boxes you find. Basically its a calculation to repeatedly not find those you mention.
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RichR
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Ian's right, I critically missed out "as the 2 last boxes", I was calculating for chosing one of the two boxes at the start. The probabilities to have them at the end will be signifcantly longer
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Cardiac Kid
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1/44?
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Cardiac Kid
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Scrap that actually.
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RichR
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Also worth thinking about is that the mean average of the boxes is £25,700 (ish) and only 5 boxes contain above this amount; the odds are stacked against you winning big so if you play it as a game of chance, you may as well just pick blindly and you win what you win.
Any offer over £26,000 means you're more likely to be above what's in your box anyway so either play for an offer over that or play to the end with the intention of only ever having what is in your box.
Before round one you have a 2 in 22 chance of picking either £100k or £250k, You then have to look at the probability of picking one of those two numbers in the enxt rounds as opposed to looking at NOT picking them; in round one, you have a 2 in 21 chance of choosing the two big prizes; if they're still in play after this round, the odds of choosing them fall to 2 in 20, then 2 in 19, 2 in 18 and so on. As the game progresses you have a higher and higher chance of losing one of the top prizes.
What I can't remember is the way you link probabilities from one round into the next but it'll be an much higher figure of actually still having the last two prizes as you go into the last round.
However, if you're given the chance to swap in the last round, you're much better to swap than not because of something called the 'Monty Hall Paradox'
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spencer88
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Registered: 6th Oct 08
Location: cornwall
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32%
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Russ
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quote: Originally posted by LiVe LeE
Also worth thinking about is that the mean average of the boxes is £25,700 (ish) and only 5 boxes contain above this amount; the odds are stacked against you winning big so if you play it as a game of chance, you may as well just pick blindly and you win what you win.
Any offer over £26,000 means you're more likely to be above what's in your box anyway so either play for an offer over that or play to the end with the intention of only ever having what is in your box.
Before round one you have a 2 in 22 chance of picking either £100k or £250k, You then have to look at the probability of picking one of those two numbers in the enxt rounds as opposed to looking at NOT picking them; in round one, you have a 2 in 21 chance of choosing the two big prizes; if they're still in play after this round, the odds of choosing them fall to 2 in 20, then 2 in 19, 2 in 18 and so on. As the game progresses you have a higher and higher chance of losing one of the top prizes.
What I can't remember is the way you link probabilities from one round into the next but it'll be an much higher figure of actually still having the last two prizes as you go into the last round.
However, if you're given the chance to swap in the last round, you're much better to swap than not because of something called the 'Monty Hall Paradox'
ok Kevin
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RichR
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I've spent most of the afternoon doing this and not work - shit will hit the fan Monday
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sc0ott
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Whats the chances of you getting approved for the show?
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3CorsaMeal
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Registered: 11th Apr 02
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this might help example it.
http://www.pnas.org/content/103/19/7414/F4.large.jpg
Its basically a infinatic equation and the answer is anwhere from 1 in 1 to 1 in 100,000,000,000
X= Anywhere between 1 & 100,000,000,000
[Edited on 20-01-2012 by 3CorsaMeal]
[Edited on 21-01-2012 by Ian]
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Steve
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Hammer
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Registered: 11th Feb 04
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I'm good at maffs.
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Russ
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would love to be a weirdo like pow and just look at that and know the answer is 797,233,340
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spencer88
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Location: cornwall
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quote: Originally posted by Russ
would love to be a weirdo like pow and just look at that and know the answer is 797,233,340
How would anyone ask Pow? All on restricted view of his profile.
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Russ
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quote: Originally posted by Pow
answer is 797,233,{you are not privileged to see this part of the answer due to profile restrictions}
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Steve
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preffered pow when he was single tbh
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Russ
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so did Lauren Pussey from what i've heard
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spencer88
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quote: Originally posted by Russ
so did Lauren Pussey from what i've heard
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Cardiac Kid
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Registered: 1st Jan 07
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1 in 231.
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DC90
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You're not going on deal or no deal are you?
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Ian
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Registered: 28th Aug 99
Location: Liverpool
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Fairly sure this isn't a Monty Hall.
Decide on the question as well, winning "big" or winning over the mean are different calcuations.
Its 20-odd discrete events, multiply the odds for each one.
Think its got more with a pool balls in a bag problem than anything else you've mentioned.
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