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Dear Long Live Yorke


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#1 chgocubs99

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Posted 14 April 2008 - 10:40 PM

So while I was sitting in the airport for 9 hours yesterday, I bought this book. It's in the other room and I don't remember the title. Anyway, the point is that they talk about factorials in the book and how the whole computer world is based off of them and if they were ever a way to figure out how to factor extremely large numbers quickly, the whole think would send us back to a non-electronic era since nothing would be secure.So is that stuff accurate?
QUOTE (dscoot @ Friday, April 10th, 2009, 3:20 AM) <{POST_SNAPBACK}>
im still not sold that many of these people that get these big online scores are winners when it comes to the live game, which, by the way, is real poker.


#2 BigDMcGee

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Posted 14 April 2008 - 11:57 PM

what's your favorite number sequence in Pi, and what digit does it first appear at?
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#3 pckt10s

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Posted 15 April 2008 - 12:15 AM

is long division overrated?
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#4 Dirtydutch

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Posted 15 April 2008 - 12:15 AM

A little word problem, to test Yorke's practical skills:If Dutch were to have unprotected sex with:1 girl with a .04% chance of being HIV-positive, one with a .002% chance, and a third with a 2% chance, statistically speaking, how likely would it be that I made it up?

#5 ShakeZuma

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Posted 15 April 2008 - 02:06 AM

View PostDirtydutch, on Tuesday, April 15th, 2008, 4:15 AM, said:

A little word problem, to test Yorke's practical skills:If Dutch were to have unprotected sex with:1 girl with a .04% chance of being HIV-positive, one with a .002% chance, and a third with a 2% chance, statistically speaking, how likely would it be that I made it up?
atlanta, right? 2%.YORKE: 2 + 2 = _______

View PostAmScray, on 30 August 2010 - 12:41 PM, said:

one cannot possibly ascribe themselves to the larger (D) philosophy without first being a poon

#6 hblask

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Posted 15 April 2008 - 04:24 AM

View Postchgocubs99, on Tuesday, April 15th, 2008, 1:40 AM, said:

So while I was sitting in the airport for 9 hours yesterday, I bought this book. It's in the other room and I don't remember the title. Anyway, the point is that they talk about factorials prime number factorization in the book and how the whole computer world is based off of them and if they were ever a way to figure out how to factor extremely large numbers quickly, the whole think would send us back to a non-electronic era since nothing would be secure.So is that stuff accurate?
FYP, I think. I haven't heard of factorials being involved in cryptography, it's all about really big prime numbers.I'll let LLY address the rest of it....
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#7 LongLiveYorke

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Posted 15 April 2008 - 05:52 AM

View Postchgocubs99, on Tuesday, April 15th, 2008, 2:40 AM, said:

So while I was sitting in the airport for 9 hours yesterday, I bought this book. It's in the other room and I don't remember the title. Anyway, the point is that they talk about factorials in the book and how the whole computer world is based off of them and if they were ever a way to figure out how to factor extremely large numbers quickly, the whole think would send us back to a non-electronic era since nothing would be secure.So is that stuff accurate?
I think you're a bit confused. Factorials and factoring are different things. Factorials are those silly exclamation points at the ends of numbers that you sometimes see: 5! == 5*4*3*2*1Factoring involves breaking down numbers into products of smaller numbers. Factoring is extremely important in cryptography. There are computer algorithms that factor numbers, and some are better than others, but the important thing is that it takes an extremely long amount of time to factor very large numbers. Modern encryption techniques use what are called "public keys" and "private keys." These are used in certain ways to turn messages into a coded message and to turn the coded message back. These keys are often related to each other by the factorization of a large number. The public keys are not kept secret and are transmitted but the private ones are not. So, if you could easily factor large numbers and you knew what algorithm a certain code was written in, you could use the public key to decode the private key pretty easily.Modern codes use the fact that it can take the average computer years and years to decompose large numbers into prime factors, so decoding complicated codes is often infeasible.Here's a more detailed explanation:http://www.cs.bham.a...public_key.html

#8 LongLiveYorke

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Posted 15 April 2008 - 05:54 AM

View PostDirtydutch, on Tuesday, April 15th, 2008, 4:15 AM, said:

A little word problem, to test Yorke's practical skills:If Dutch were to have unprotected sex with:1 girl with a .04% chance of being HIV-positive, one with a .002% chance, and a third with a 2% chance, statistically speaking, how likely would it be that I made it up?
Wait, three different girls? Yeah, it's made up.

#9 LongLiveYorke

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Posted 15 April 2008 - 05:59 AM

Okay, my turn.Let's say a friend comes up to me and gives me the following offer:He's going to put a certain amount of money in one envelope and twice that amount of money in another envelope. He then hands me one of the envelopes and lets me open it and see the amount of money inside. I do so. He then gives me the chance to switch envelopes. Should I switch or should I stay?Here's my solution:Well, there's clearly a 50/50 chance that I pick either the smaller one or the bigger one. So, if I switch, I could either double or half the money I have with a 50/50 probability. So, .5 * 2x + .5 * (1/2)x = 1.25xSince 1.25x > x, the amount of money I have, I should switch.But of course this solution makes no sense. Had I picked the other one, I would have come to the same conclusion and switched. What's the resolution?

#10 SuitedAces21

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Posted 15 April 2008 - 06:25 AM

View Postchgocubs99, on Tuesday, April 15th, 2008, 2:40 AM, said:

Anyway, the point is that they talk about factorials in the book and how the whole computer world is based off of them and if they were ever a way to figure out how to factor extremely large numbers quickly, the whole think would send us back to a non-electronic era since nothing would be secure.
No more secrets, Marty.
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#11 speedz99

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Posted 15 April 2008 - 06:31 AM

View PostLongLiveYorke, on Tuesday, April 15th, 2008, 5:59 AM, said:

.5 * 2x + .5 * (1/2)x = 1.25xSince 1.25x > x, the amount of money I have, I should switch.But of course this solution makes no sense. Had I picked the other one, I would have come to the same conclusion and switched. What's the resolution?
Where do you get the '(1/2)x'? There are only two envelopes...'x' and '2x'. Adding in the '(1/2)' and halving that is what's giving you the extra .25.

View PostSuitedAces21, on Tuesday, April 15th, 2008, 6:25 AM, said:

No more secrets, Marty.
I always read that in Kingsley's weird accent from the movie.
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#12 JoeyJoJo

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Posted 15 April 2008 - 06:43 AM

View PostDirtydutch, on Tuesday, April 15th, 2008, 1:15 AM, said:

A little word problem, to test Yorke's practical skills:If Dutch were to have unprotected sex with:1 girl with a .04% chance of being HIV-positive, one with a .002% chance, and a third with a 2% chance, statistically speaking, how likely would it be that I made it up?
1 out of 4 girls between the ages of 14 and 19 have an STD.I learned that because April is STD Awareness month.
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#13 ShakeZuma

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Posted 15 April 2008 - 06:52 AM

View PostJoeyJoJo, on Tuesday, April 15th, 2008, 10:43 AM, said:

1 out of 4 girls between the ages of 14 and 19 have an STD.I learned that because April is STD Awareness month.
for some of us, every month is STD awareness month.

View PostAmScray, on 30 August 2010 - 12:41 PM, said:

one cannot possibly ascribe themselves to the larger (D) philosophy without first being a poon

#14 hblask

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Posted 15 April 2008 - 07:12 AM

View PostLongLiveYorke, on Tuesday, April 15th, 2008, 8:59 AM, said:

Okay, my turn.Let's say a friend comes up to me and gives me the following offer:He's going to put a certain amount of money in one envelope and twice that amount of money in another envelope. He then hands me one of the envelopes and lets me open it and see the amount of money inside. I do so. He then gives me the chance to switch envelopes. Should I switch or should I stay?Here's my solution:Well, there's clearly a 50/50 chance that I pick either the smaller one or the bigger one. So, if I switch, I could either double or half the money I have with a 50/50 probability. So, .5 * 2x + .5 * (1/2)x = 1.25xSince 1.25x > x, the amount of money I have, I should switch.But of course this solution makes no sense. Had I picked the other one, I would have come to the same conclusion and switched. What's the resolution?
First, this looks suspiciously like the Monty Hall problem.... so we need ground rules. First, we need to assume he hands you an envelope randomly (or let's you pick it randomly), and second, you have to assume that he *always* gives you the choice to switch regardless of which envelope you end up with.I think the problem is that the two X's are not the same. It's really:.5*2x + .5*(1/2)Y = ?? where x = .5Y.I haven't gotten the math to work yet, but I'm pretty sure it's something related to that....I'll keep looking at it.
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#15 hblask

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Posted 15 April 2008 - 07:29 AM

OK, here's the answer.Let X be the amount in the larger envelope.Let Y be the amount in the smaller envelope.X = 2YSo, before we start, we haveEV = .5X + .5Y = .5(2Y) + .5Y = 1.5Y = .75X. This is as we expect. Our expected value is 50% more than the smaller envelope or 75% of the larger envelope.Now we pick one, but nobody knows which one it is. So our choice is:.5 (2Y) + .5 (.5X) = Y + .25X = Y + .25 (2Y) = Y + .5Y = 1.5Y or .75X, same as before.
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#16 ShakeZuma

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Posted 15 April 2008 - 07:40 AM

JUST PICK A DAMN ENVELOPE

View PostAmScray, on 30 August 2010 - 12:41 PM, said:

one cannot possibly ascribe themselves to the larger (D) philosophy without first being a poon

#17 Kaveros

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Posted 15 April 2008 - 08:19 AM

I have decided after reading this thread that LongLiveYork is a lot smarter than me.

#18 donk4life

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Posted 15 April 2008 - 08:23 AM

View PostShakeZuma, on Tuesday, April 15th, 2008, 10:40 AM, said:

JUST PICK A DAMN ENVELOPE
That's not logical.

View Postakashenk, on 02 August 2012 - 06:44 AM, said:

I don't mind folding out hands we beat.

#19 loogie

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Posted 15 April 2008 - 08:35 AM

View Postspeedz99, on Tuesday, April 15th, 2008, 7:31 AM, said:

Where do you get the '(1/2)x'? There are only two envelopes...'x' and '2x'. Adding in the '(1/2)' and halving that is what's giving you the extra .25.
I tried switching to 'x' from '(1/2)x', and I get the answer of 1.5x. SWITCH ENVELOPES IMMEDIATELY!

#20 JoeyJoJo

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Posted 15 April 2008 - 09:01 AM

View PostShakeZuma, on Tuesday, April 15th, 2008, 8:40 AM, said:

JUST PICK A DAMN ENVELOPE
When you have absolutely no ****ing clue what you're talking about, just keep your mouth shut. If it helps, think about losing $2k in equity in a free roll, the amount of absolute money we're talking about is irrelevant as our bank accounts are clearly not very similar. Thanks for chiming in with your words of wisdom.
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