1.) Let's say you were on a game show, you had to pick one of 3 doors for the grand prize. Only one door has the grand prize. You took your pick. Then the Host reveals a door you have not chosen and it doesn't have the winning prize.
Now, there are only two doors left. The host gives you a chance to switch. What are your chances of winning the price if you stay and if you change your pick?
Full Version: Another Question
You have 3 doors.
Each door has a 33.3% chance of being right
you choose one, and host eliminates another that turns out to be blank, and he asks you if you want to repick now that you have two choices
then your chances are 66.7% to be right if you change
Each door has a 33.3% chance of being right
you choose one, and host eliminates another that turns out to be blank, and he asks you if you want to repick now that you have two choices
then your chances are 66.7% to be right if you change
QUOTE(|)anté @ Jul 20 2008, 07:50 PM) [snapback]3821455[/snapback]
You have 3 doors.
Each door has a 33.3% chance of being right
you choose one, and host eliminates another that turns out to be blank, and he asks you if you want to repick now that you have two choices
then your chances are 66.7% to be right if you change
Each door has a 33.3% chance of being right
you choose one, and host eliminates another that turns out to be blank, and he asks you if you want to repick now that you have two choices
then your chances are 66.7% to be right if you change
LOL. I already told you it Littlegirl's thread.
I saw 21 too.
QUOTE(indacut @ Jul 21 2008, 11:54 AM) [snapback]3822706[/snapback]
I saw 21 too.
I got it from Statistics class when I was still in High school like 2 years ago.
It's called the Monty Hall Problem
Although it was also known as the 3 prisoners problem.
QUOTE
This problem involves three condemned prisoners, a random one of whom has been secretly chosen to be pardoned. One of the prisoners begs the warden to tell him the name of one of the others who will be executed, arguing that this reveals no information about his own fate but increases his chances of being pardoned from 1/3 to 1/2. The warden obliges, (secretly) flipping a coin to decide which name to provide if the prisoner who is asking is the one being pardoned. The question is whether knowing the warden's answer changes the prisoner's chances of being pardoned. This problem is equivalent to the Monty Hall problem; the prisoner asking the question still has a 1/3 chance of being pardoned but his unnamed cohort has a 2/3 chance.
This was actually a very crazy problem. Although it's very simple, to us know. Marilyn vos Savant(The person who has the highest recorded IQ in the world) published the correct answer, and she got a lot of flack from PhD's and professionals telling her she's wrong.
QUOTE(Torete_ako_sa_yo @ Jul 21 2008, 01:11 PM) [snapback]3822662[/snapback]
LOL. I already told you it Littlegirl's thread.
you told me what?
lmao i took probability and statistic before and most of the probability we dealing with involves deck of card. 
for answer: 2/3
for answer: 2/3
QUOTE(InitialDJay @ Jul 21 2008, 09:50 PM) [snapback]3823255[/snapback]
lmao i took probability and statistic before and most of the probability we dealing with involves deck of card.
for answer: 2/3
for answer: 2/3
I hate probalility and statistic!
QUOTE(Littlegirl @ Jul 22 2008, 09:22 AM) [snapback]3824390[/snapback]
I hate probalility and statistic!lol it was useful in knowing how casino cheating with probability.... my prof taught us that.
QUOTE(Torete_ako_sa_yo @ Jul 20 2008, 04:52 PM) [snapback]3821366[/snapback]
1.) Let's say you were on a game show, you had to pick one of 3 doors for the grand prize. Only one door has the grand prize. You took your pick. Then the Host reveals a door you have not chosen and it doesn't have the winning prize.
Now, there are only two doors left. The host gives you a chance to switch. What are your chances of winning the price if you stay and if you change your pick?
Now, there are only two doors left. The host gives you a chance to switch. What are your chances of winning the price if you stay and if you change your pick?
Easy answer. Just watch 21.
I knew this sht before the Movie came out. Damn. I should go out more. LOL.
It's hard to believe that those kids in Mr.M's class don't know this crap. This is high school stuff man, and they in Harvard.
Here's a seemingly simple but difficult question.
There are three boxes: a box containing two gold coins, a box with two silver coins, and a box with one of each. After choosing a box at random and withdrawing one coin at random that happens to be a gold coin. What is the probability that the other coin in the chosen box is also a gold coin??
It's hard to believe that those kids in Mr.M's class don't know this crap. This is high school stuff man, and they in Harvard.
Here's a seemingly simple but difficult question.
There are three boxes: a box containing two gold coins, a box with two silver coins, and a box with one of each. After choosing a box at random and withdrawing one coin at random that happens to be a gold coin. What is the probability that the other coin in the chosen box is also a gold coin??
QUOTE(InitialDJay @ Jul 23 2008, 04:00 AM) [snapback]3825905[/snapback]
lol it was useful in knowing how casino cheating with probability.... my prof taught us that.
really? how? sounds interesting..
QUOTE(Littlegirl @ Jul 24 2008, 06:38 AM) [snapback]3828471[/snapback]
really? how? sounds interesting..
lol ...okay my prof told us... that in casino, the game is fair which mean the rolling of the dice, the cards outcome, everything is fair.
the tricky part that is not fair is the betting.
the casino always set a limit amount you can bet and a minimum amount you have to place a bet to play.
so for example, if the minimum bet is 10, then the max limit amount is usually 500. otherewise if it's 20, then max limit is 1000. the reason casino does this is to prevent rich people from placing double bet.
for example without settting bet restriction, people can place a first bet of 10, they lose the 1st one, so then now they double to 20, lose again, double to 40, lose again, double to 80, so eventually they win and casino will go bankrupt. lol
so in order to make profit, casion always set limit with minimum and maximum bet and working with probability.
in a table of 8 players, most likely only 2 will end up winning while the other 6 lose. in this method, the probabability that casino winning ratio is 3:1. and calculating the winning percentage, casino is a 66% favorite while the players only have 33%. the last 1% is result from being lucky such as winning the lottery machine or whatever lottery they hold at the casino.
i've never been to casino but i watched movie.
maybe after learning this, i don't think i want to play at casino every. lol how about you lg? =p
QUOTE(InitialDJay @ Jul 25 2008, 05:29 AM) [snapback]3830203[/snapback]
lol ...okay my prof told us... that in casino, the game is fair which mean the rolling of the dice, the cards outcome, everything is fair.
the tricky part that is not fair is the betting.
the casino always set a limit amount you can bet and a minimum amount you have to place a bet to play.
so for example, if the minimum bet is 10, then the max limit amount is usually 500. otherewise if it's 20, then max limit is 1000. the reason casino does this is to prevent rich people from placing double bet.
for example without settting bet restriction, people can place a first bet of 10, they lose the 1st one, so then now they double to 20, lose again, double to 40, lose again, double to 80, so eventually they win and casino will go bankrupt. lol
so in order to make profit, casion always set limit with minimum and maximum bet and working with probability.
in a table of 8 players, most likely only 2 will end up winning while the other 6 lose. in this method, the probabability that casino winning ratio is 3:1. and calculating the winning percentage, casino is a 66% favorite while the players only have 33%. the last 1% is result from being lucky such as winning the lottery machine or whatever lottery they hold at the casino.
i've never been to casino but i watched movie. maybe after learning this, i don't think i want to play at casino every. lol how about you lg? =p
the tricky part that is not fair is the betting.
the casino always set a limit amount you can bet and a minimum amount you have to place a bet to play.
so for example, if the minimum bet is 10, then the max limit amount is usually 500. otherewise if it's 20, then max limit is 1000. the reason casino does this is to prevent rich people from placing double bet.
for example without settting bet restriction, people can place a first bet of 10, they lose the 1st one, so then now they double to 20, lose again, double to 40, lose again, double to 80, so eventually they win and casino will go bankrupt. lol
so in order to make profit, casion always set limit with minimum and maximum bet and working with probability.
in a table of 8 players, most likely only 2 will end up winning while the other 6 lose. in this method, the probabability that casino winning ratio is 3:1. and calculating the winning percentage, casino is a 66% favorite while the players only have 33%. the last 1% is result from being lucky such as winning the lottery machine or whatever lottery they hold at the casino.
i've never been to casino but i watched movie.
maybe after learning this, i don't think i want to play at casino every. lol how about you lg? =pI want to go with you to the casino because you know the way of winning. Okay, we go together and win a billion and million dollars back home.
QUOTE(InitialDJay @ Jul 25 2008, 02:29 AM) [snapback]3830203[/snapback]
lol ...okay my prof told us... that in casino, the game is fair which mean the rolling of the dice, the cards outcome, everything is fair.
the tricky part that is not fair is the betting.
the casino always set a limit amount you can bet and a minimum amount you have to place a bet to play.
so for example, if the minimum bet is 10, then the max limit amount is usually 500. otherewise if it's 20, then max limit is 1000. the reason casino does this is to prevent rich people from placing double bet.
for example without settting bet restriction, people can place a first bet of 10, they lose the 1st one, so then now they double to 20, lose again, double to 40, lose again, double to 80, so eventually they win and casino will go bankrupt. lol
so in order to make profit, casion always set limit with minimum and maximum bet and working with probability.
in a table of 8 players, most likely only 2 will end up winning while the other 6 lose. in this method, the probabability that casino winning ratio is 3:1. and calculating the winning percentage, casino is a 66% favorite while the players only have 33%. the last 1% is result from being lucky such as winning the lottery machine or whatever lottery they hold at the casino.
i've never been to casino but i watched movie. maybe after learning this, i don't think i want to play at casino every. lol how about you lg? =p
the tricky part that is not fair is the betting.
the casino always set a limit amount you can bet and a minimum amount you have to place a bet to play.
so for example, if the minimum bet is 10, then the max limit amount is usually 500. otherewise if it's 20, then max limit is 1000. the reason casino does this is to prevent rich people from placing double bet.
for example without settting bet restriction, people can place a first bet of 10, they lose the 1st one, so then now they double to 20, lose again, double to 40, lose again, double to 80, so eventually they win and casino will go bankrupt. lol
so in order to make profit, casion always set limit with minimum and maximum bet and working with probability.
in a table of 8 players, most likely only 2 will end up winning while the other 6 lose. in this method, the probabability that casino winning ratio is 3:1. and calculating the winning percentage, casino is a 66% favorite while the players only have 33%. the last 1% is result from being lucky such as winning the lottery machine or whatever lottery they hold at the casino.
i've never been to casino but i watched movie.
maybe after learning this, i don't think i want to play at casino every. lol how about you lg? =phttp://casinogambling.about.com/od/moneyma...nt/a/system.htm
It's called the Martingale betting system. It's been around for centuries. It seems like a good idea at first, but it's absolutely a horrible betting system.
Yeah, never bet in Casinos unless you are prepared to lose. Card counting is the only system that actually takes the house's edge.
QUOTE(Torete_ako_sa_yo @ Jul 25 2008, 05:28 PM) [snapback]3830915[/snapback]
http://casinogambling.about.com/od/moneyma...nt/a/system.htm
It's called the Martingale betting system. It's been around for centuries. It seems like a good idea at first, but it's absolutely a horrible betting system.
Yeah, never bet in Casinos unless you are prepared to lose. Card counting is the only system that actually takes the house's edge.
It's called the Martingale betting system. It's been around for centuries. It seems like a good idea at first, but it's absolutely a horrible betting system.
Yeah, never bet in Casinos unless you are prepared to lose. Card counting is the only system that actually takes the house's edge.
um.. you are from Las Vegas! So you must know everything about casino.
QUOTE(Littlegirl @ Jul 25 2008, 09:00 AM) [snapback]3830558[/snapback]
I want to go with you to the casino because you know the way of winning. Okay, we go together and win a billion and million dollars back home.
yes lets go to a casino and lose everything, including selling our clothes and walking home with a box together. how cool huh?
QUOTE(InitialDJay @ Jul 26 2008, 04:00 AM) [snapback]3831849[/snapback]
yes lets go to a casino and lose everything, including selling our clothes and walking home with a box together. how cool huh?
What's inside the box?
It is fun to try once in your life , RS!
QUOTE(Torete_ako_sa_yo @ Jul 23 2008, 03:24 PM) [snapback]3826822[/snapback]
Here's a seemingly simple but difficult question.
There are three boxes: a box containing two gold coins, a box with two silver coins, and a box with one of each. After choosing a box at random and withdrawing one coin at random that happens to be a gold coin. What is the probability that the other coin in the chosen box is also a gold coin??
There are three boxes: a box containing two gold coins, a box with two silver coins, and a box with one of each. After choosing a box at random and withdrawing one coin at random that happens to be a gold coin. What is the probability that the other coin in the chosen box is also a gold coin??
2/3
QUOTE(Littlegirl @ Jul 27 2008, 08:12 AM) [snapback]3834237[/snapback]
What's inside the box?
It is fun to try once in your life , RS!
It is fun to try once in your life , RS!
YOU! i will lose everything and result to sellling your clothes so you end up with nothing so you stay in the box!
is that okay with you lg?
i'm a bad gambler and too out of control
QUOTE(InitialDJay @ Jul 28 2008, 01:45 AM) [snapback]3835503[/snapback]
YOU! i will lose everything and result to sellling your clothes so you end up with nothing so you stay in the box!
is that okay with you lg? i'm a bad gambler and too out of control
is that okay with you lg?
i'm a bad gambler and too out of control MEEEEEEEEEEE?
YOu! okay, ask them don't give you a box for free but give you a LEAF.
QUOTE(charade @ Jul 27 2008, 04:56 PM) [snapback]3834815[/snapback]
2/3
good job.
QUOTE(Littlegirl @ Jul 27 2008, 11:13 PM) [snapback]3835603[/snapback]
MEEEEEEEEEEE?
YOu! okay, ask them don't give you a box for free but give you a LEAF.
YOu! okay, ask them don't give you a box for free but give you a LEAF.
YESSS, YOU!
okay, so you don't want to be a in a box huh? alrighty i ask for a BIG LEAF to cover you instead.
QUOTE(InitialDJay @ Jul 28 2008, 09:47 PM) [snapback]3837467[/snapback]
YESSS, YOU!
okay, so you don't want to be a in a box huh? alrighty i ask for a BIG LEAF to cover you instead.
okay, so you don't want to be a in a box huh? alrighty i ask for a BIG LEAF to cover you instead.
how can you find a leaf as big as my body? QUOTE(Littlegirl @ Aug 1 2008, 10:27 AM) [snapback]3845266[/snapback]
how can you find a leaf as big as my body? it's NOT to cover your whole body.
QUOTE(InitialDJay @ Aug 2 2008, 02:05 AM) [snapback]3846221[/snapback]
it's NOT to cover your whole body.
QUOTE(Littlegirl @ Aug 1 2008, 11:24 PM) [snapback]3846255[/snapback]
why crying, did i just hurt your feeling?
it's the truth...and truth hurts
QUOTE(InitialDJay @ Aug 2 2008, 02:43 AM) [snapback]3846294[/snapback]
why crying, did i just hurt your feeling?
it's the truth...and truth hurts
okay okay.. you are the winner again.
I just googled " math discussion forum" and i found this :
A math question requested by RS - Asia Finest Discussion Forum
9 Jul 2008 ... You forgot what your math professors always remain you - the answer is not that important.. show all your works to gain credits. ...
www.asiafinest.com/forum/index.php?showtopic=165611 - 103k -
http://www.google.co.th/search?hl=th&c...art=30&sa=N
===
bye RS and don't wait for me tomorrow. I will have a busy day with Jacky again.
QUOTE(Littlegirl @ Aug 2 2008, 09:28 AM) [snapback]3846804[/snapback]
okay okay.. you are the winner again.
I just googled " math discussion forum" and i found this :
A math question requested by RS - Asia Finest Discussion Forum
9 Jul 2008 ... You forgot what your math professors always remain you - the answer is not that important.. show all your works to gain credits. ...
www.asiafinest.com/forum/index.php?showtopic=165611 - 103k -
http://www.google.co.th/search?hl=th&c...art=30&sa=N
===
bye RS and don't wait for me tomorrow. I will have a busy day with Jacky again.
I just googled " math discussion forum" and i found this :
A math question requested by RS - Asia Finest Discussion Forum
9 Jul 2008 ... You forgot what your math professors always remain you - the answer is not that important.. show all your works to gain credits. ...
www.asiafinest.com/forum/index.php?showtopic=165611 - 103k -
http://www.google.co.th/search?hl=th&c...art=30&sa=N
===
bye RS and don't wait for me tomorrow. I will have a busy day with Jacky again. huh? the link is really messy
okay..i will .
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