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50/50
#43
RE: 50/50
(August 31, 2015 at 11:51 pm)thehedglin Wrote:
(August 31, 2015 at 11:09 pm)IATIA Wrote: You have obviously missed the point. 

Did I? Forgive me, but I guess I didn't understand your point, then. I suppose I will have to see if you explain it better here...

(August 31, 2015 at 11:09 pm)IATIA Wrote: Firstly, there is no coin toss in my argument.

Indeed, I used it as a example of something analogous. The coin toss is a binary example, like yours, so it should have similar distribution properties.

(August 31, 2015 at 11:09 pm)IATIA Wrote: Secondly, regardless of whether or not you pick the correct hand, there is still a coin.

That would be the reason that I used an example with two clear choices, instead of three. In a situation where "no coin" was a possibility, you would be at 33.3_/33.3_/33.3_ instead of 50/50. I would have had to use an analog with three choices to compensate.

(August 31, 2015 at 11:09 pm)IATIA Wrote: There is not a 50/50 chance of there being a coin, only a 50/50 chance of picking which hand it is in.

Indeed, and in mine it is not a 50/50 chance of there being a coin, only a 50/50 chance of choosing the correct result of the flip.

(August 31, 2015 at 11:09 pm)IATIA Wrote: Likewise, there is not a 50/50 chance that a god exists. only a 50/50 chance that one chooses correctly.

My example had a sum total of diddly-squat to do with gods existence, only the probability of the choice being correct.

(August 31, 2015 at 11:09 pm)IATIA Wrote: As to the coin toss, every time it is tossed there is still a 50/50 chance of heads.  The number of tosses does not change the possibilities.

Let us see:

f(n)= pr(tails in first flip)×f(n-1) +
pr(heads in first flip, tails in second flip)×f(n-2) +
pr(heads in first 2 flips, tails in third flip)×f(n-3) +
pr(heads in first 3 flips, tails in third flip)×f(n-4) +
pr(heads in first 4 flips, tails in fourth flip)×f(n-5) +
pr(heads in first 5 flips, tails in fifth flip)×f(n-6) +
pr(heads in first 6 flips, tails in sixth flip)×f(n-7) +
pr(heads in first 7 flips) =
(1/2)×f(n-1) +
(1/2)2×f(n-2) +
(1/2)3×f(n-3) +
(1/2)4×f(n-4) +
(1/2)5×f(n-5) +
(1/2)6×f(n-6) +
(1/2)7×f(n-7) +
(1/2)7
Where:
f(n)=probability of success within n flips.
pr(x)=probability of x happening.

No, the number of flips changes the distribution curve, changing the odds of the sequence. Even if the odds of a single flip doesn't ever change, the odds of any sequence of numerous flips does. This also influences the probability of what will come next.

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Messages In This Thread
50/50 - by Shuffle - August 30, 2015 at 4:29 pm
RE: 50/50 - by abaris - August 30, 2015 at 4:32 pm
RE: 50/50 - by Shuffle - August 30, 2015 at 4:36 pm
RE: 50/50 - by abaris - August 30, 2015 at 4:38 pm
RE: 50/50 - by Shuffle - August 30, 2015 at 4:39 pm
RE: 50/50 - by Longhorn - August 30, 2015 at 4:33 pm
RE: 50/50 - by Ravenshire - August 30, 2015 at 4:41 pm
RE: 50/50 - by Cecelia - August 30, 2015 at 4:42 pm
RE: 50/50 - by Alex K - August 30, 2015 at 5:16 pm
RE: 50/50 - by abaris - August 30, 2015 at 4:45 pm
RE: 50/50 - by Chad32 - August 30, 2015 at 5:00 pm
RE: 50/50 - by Spooky - August 30, 2015 at 5:01 pm
RE: 50/50 - by Shuffle - August 30, 2015 at 5:40 pm
RE: 50/50 - by Wyrd of Gawd - August 31, 2015 at 1:22 am
RE: 50/50 - by Ravenshire - August 31, 2015 at 1:53 am
RE: 50/50 - by Wyrd of Gawd - August 31, 2015 at 2:40 am
RE: 50/50 - by Ravenshire - August 31, 2015 at 10:03 pm
RE: 50/50 - by robvalue - August 31, 2015 at 8:06 am
RE: 50/50 - by thehedglin - August 31, 2015 at 8:58 am
RE: 50/50 - by ErGingerbreadMandude - August 31, 2015 at 9:08 am
RE: 50/50 - by Shuffle - August 31, 2015 at 10:19 am
RE: 50/50 - by robvalue - August 31, 2015 at 9:51 am
RE: 50/50 - by thehedglin - August 31, 2015 at 10:29 am
RE: 50/50 - by Wyrd of Gawd - August 31, 2015 at 11:56 am
RE: 50/50 - by ErGingerbreadMandude - August 31, 2015 at 10:22 am
RE: 50/50 - by Shuffle - August 31, 2015 at 10:26 am
RE: 50/50 - by ErGingerbreadMandude - August 31, 2015 at 10:31 am
RE: 50/50 - by Shuffle - August 31, 2015 at 10:32 am
RE: 50/50 - by ErGingerbreadMandude - August 31, 2015 at 10:34 am
RE: 50/50 - by Shuffle - August 31, 2015 at 10:37 am
RE: 50/50 - by ErGingerbreadMandude - August 31, 2015 at 11:19 am
RE: 50/50 - by Shuffle - August 31, 2015 at 7:18 pm
RE: 50/50 - by Homeless Nutter - August 31, 2015 at 11:57 am
RE: 50/50 - by robvalue - August 31, 2015 at 11:58 am
RE: 50/50 - by IATIA - August 31, 2015 at 7:25 pm
RE: 50/50 - by IATIA - August 31, 2015 at 7:38 pm
RE: 50/50 - by thehedglin - August 31, 2015 at 9:31 pm
RE: 50/50 - by Shuffle - August 31, 2015 at 9:47 pm
RE: 50/50 - by thehedglin - August 31, 2015 at 10:47 pm
RE: 50/50 - by Shuffle - September 1, 2015 at 12:03 am
RE: 50/50 - by IATIA - August 31, 2015 at 11:09 pm
RE: 50/50 - by thehedglin - August 31, 2015 at 11:51 pm
RE: 50/50 - by Shuffle - September 1, 2015 at 12:00 am
RE: 50/50 - by thehedglin - September 1, 2015 at 12:07 am
RE: 50/50 - by IATIA - September 1, 2015 at 1:33 am
RE: 50/50 - by thehedglin - September 1, 2015 at 7:14 am
RE: 50/50 - by Simon Moon - August 31, 2015 at 10:19 pm
RE: 50/50 - by IATIA - September 1, 2015 at 1:50 am
RE: 50/50 - by comet - September 1, 2015 at 7:41 am
RE: 50/50 - by Shuffle - September 1, 2015 at 9:51 am
RE: 50/50 - by Alex K - September 1, 2015 at 11:39 am
RE: 50/50 - by Shuffle - September 1, 2015 at 7:13 pm
RE: 50/50 - by thehedglin - September 1, 2015 at 9:51 pm
RE: 50/50 - by IATIA - September 1, 2015 at 11:50 pm
RE: 50/50 - by Shuffle - September 2, 2015 at 12:37 am
RE: 50/50 - by IATIA - September 2, 2015 at 12:43 am
RE: 50/50 - by Shuffle - September 2, 2015 at 12:46 am
RE: 50/50 - by IATIA - September 2, 2015 at 1:13 am
RE: 50/50 - by Shuffle - September 2, 2015 at 9:59 am
RE: 50/50 - by Cato - September 2, 2015 at 6:43 am
RE: 50/50 - by IATIA - September 2, 2015 at 12:03 am
RE: 50/50 - by MTL - September 2, 2015 at 12:37 am
RE: 50/50 - by Wyrd of Gawd - September 2, 2015 at 3:50 am
RE: 50/50 - by Shuffle - September 2, 2015 at 10:40 am
RE: 50/50 - by Ben Davis - September 2, 2015 at 10:59 am
RE: 50/50 - by Shuffle - September 2, 2015 at 6:32 pm
RE: 50/50 - by robvalue - September 2, 2015 at 6:45 am
RE: 50/50 - by Ben Davis - September 2, 2015 at 9:10 am



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