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Groups > sci.physics.relativity > #476618
| Subject | Re: Witch box ? |
|---|---|
| Newsgroups | sci.physics.relativity, sci.physics |
| References | <Ys0CD.110234$Do.71201@fx31.am4> <prt7r8$dk2$1@dont-email.me> <smTED.170966$aw7.66881@fx04.am4> <ps3a13$ed3$3@dont-email.me> |
| From | Keith Stein <keithstein111@gmail.com> |
| Message-ID | <zRaFD.216533$Nt6.99789@fx19.am4> (permalink) |
| Organization | virginmedia.com |
| Date | 2018-11-09 07:40 +0000 |
Cross-posted to 2 groups.
On 09/11/2018 06:38, Chris M. Thomasson wrote:
> On 11/8/2018 1:30 AM, Keith Stein wrote:
>> On 06/11/2018 23:24, Chris M. Thomasson wrote:
>>> On 10/30/2018 10:24 AM, Keith Stein wrote:
>>>> " TRICK or TREAT ? "
>>>>
>>>> The math teacher came to the door with a box containing sweets,
>>>> and handed it to the children. "Wait there a moment" he said.
>>>>
>>>> A moment later he reappeared at the door carrying a second box.
>>>> "Now you must choose which box you want." he says "I can tell you
>>>> that there is a 50% chance that this box has twice as many sweets,
>>>> but there is a 50% chance that it only has half as many sweets as
>>>> that first box, so which box do you want, the first box, or the
>>>> second box ?".
>>>>
>>>> Witch box should
>>>> the children choose ?
>>>> (Assuming they wish to maximize their sweet collection eh!)
>>>
>>> Fwiw, I think of this along the following lines:
>>> ______________________________________
>>
>>> 1. The teacher gives box b0 to a person.
>>
>> Correct.
>>
>>> 2. The teacher says here is another box b1, that can contain 2 times
>>> the amount in b0, or 1/2.
>>
>> or 1/2 the amount in b0. Correct.
>>
>> You can flip a coin, or keep b0. What do you want
>>> to do?
>>
>> WRONG. The teacher does not mention 'a coin'
>> The teacher just asks the children,
>> "Do you want box b0 or box b1 ?"
>
> That seems to be the essence of a coin flip.
If you are suggesting that the children should decide
witch box by the flip of a coin, then i can assure you
Mr.Thomasson that, in the way the teacher had set this up,
flipping a coin was NOT the children's best strategy.
Although it's not as bad as always going for the SWAP,
as suggested by Rotchm, so i give your solution
1 out of 10 eh!
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Witch box ? Keith Stein <keithstein111@gmail.com> - 2018-10-30 17:24 +0000
Re: Witch box ? Odd Bodkin <bodkinodd@gmail.com> - 2018-10-30 18:13 +0000
Re: Witch box ? moroney@world.std.spaamtrap.com (Michael Moroney) - 2018-10-30 19:19 +0000
Re: Witch box ? RichD <r_delaney2001@yahoo.com> - 2018-11-04 19:39 -0800
Re: Witch box ? Keith Stein <keithstein111@gmail.com> - 2018-11-05 09:23 +0000
Re: Witch box ? moroney@world.std.spaamtrap.com (Michael Moroney) - 2018-10-30 19:21 +0000
Re: Witch box ? Keith Stein <keithstein111@gmail.com> - 2018-11-05 09:49 +0000
Re: Witch box ? rotchm <rotchm@gmail.com> - 2018-10-30 13:34 -0700
Re: Witch box ? Buck Dehner <uktaa@yswdooz.ca> - 2018-10-30 21:31 +0000
Re: Witch box ? Keith Stein <keithstein111@gmail.com> - 2018-10-31 00:48 +0000
Go to the door 100 times. Jeff-Relf.Me @. - 2018-10-30 18:32 -0700
Re: Go to the door 100 times. Keith Stein <keithstein111@gmail.com> - 2018-10-31 05:35 +0000
Re: Go to the door 100 times. The Starmaker <starmaker@ix.netcom.com> - 2018-10-30 23:33 -0700
Re: Go to the door 100 times. "Chris M. Thomasson" <invalid_chris_thomasson@invalid.invalid> - 2018-10-31 23:43 -0700
Re: Witch box ? rotchm <rotchm@gmail.com> - 2018-10-30 20:20 -0700
Re: Witch box ? Keith Stein <keithstein111@gmail.com> - 2018-11-01 14:21 +0000
Re: Witch box ? rotchm <rotchm@gmail.com> - 2018-11-01 07:23 -0700
Re: Witch box ? Keith Stein <keithstein111@gmail.com> - 2018-11-01 14:54 +0000
Re: Witch box ? rotchm <rotchm@gmail.com> - 2018-11-01 08:19 -0700
Re: Witch box ? Odd Bodkin <bodkinodd@gmail.com> - 2018-11-01 16:19 +0000
Re: Witch box ? rotchm <rotchm@gmail.com> - 2018-11-01 09:48 -0700
Re: Witch box ? Keith Stein <keithstein111@gmail.com> - 2018-11-06 20:40 +0000
Re: Witch box ? rotchm <rotchm@gmail.com> - 2018-11-06 13:09 -0800
Re: Witch box ? Keith Stein <keithstein111@gmail.com> - 2018-11-06 21:31 +0000
Re: Witch box ? Odd Bodkin <bodkinodd@gmail.com> - 2018-11-06 22:03 +0000
Re: Witch box ? rotchm <rotchm@gmail.com> - 2018-11-06 14:39 -0800
Re: Witch box ? Keith Stein <keithstein111@gmail.com> - 2018-11-07 00:12 +0000
Re: Witch box ? rotchm <rotchm@gmail.com> - 2018-11-06 17:18 -0800
Re: Witch box ? Keith Stein <keithstein111@gmail.com> - 2018-11-07 04:58 +0000
Re: Witch box ? Keith Stein <keithstein111@gmail.com> - 2018-11-01 17:37 +0000
Re: Witch box ? Keith Stein <keithstein111@gmail.com> - 2018-11-01 19:46 +0000
Re: Witch box ? "Chris M. Thomasson" <invalid_chris_thomasson@invalid.invalid> - 2018-10-30 14:47 -0700
Re: Witch box ? Keith Stein <keithstein111@gmail.com> - 2018-11-01 14:35 +0000
Re: Witch box ? "Chris M. Thomasson" <invalid_chris_thomasson@invalid.invalid> - 2018-11-05 23:22 -0800
[OT] Which box? (was: Witch box ?) Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-10-31 02:31 +0100
Re: [OT] Which box? (was: Witch box ?) moroney@world.std.spaamtrap.com (Michael Moroney) - 2018-10-31 03:19 +0000
Only the teacher knows the answer eh! Keith Stein <keithstein111@gmail.com> - 2018-11-01 07:59 +0000
Re: Only the teacher knows the answer eh! Keith Stein <keithstein111@gmail.com> - 2018-11-01 13:34 +0000
Re: Only the teacher knows the answer eh! rotchm <rotchm@gmail.com> - 2018-11-01 07:27 -0700
Re: Only the teacher knows the answer eh! Keith Stein <keithstein111@gmail.com> - 2018-11-01 15:11 +0000
Re: Only the teacher knows the answer eh! Odd Bodkin <bodkinodd@gmail.com> - 2018-11-01 14:29 +0000
Re: Witch box ? "Chris M. Thomasson" <invalid_chris_thomasson@invalid.invalid> - 2018-11-06 15:24 -0800
Re: Witch box ? Keith Stein <keithstein111@gmail.com> - 2018-11-08 09:30 +0000
Re: Witch box ? Keith Stein <keithstein111@gmail.com> - 2018-11-08 21:03 +0000
Re: Witch box ? "Chris M. Thomasson" <invalid_chris_thomasson@invalid.invalid> - 2018-11-08 22:38 -0800
Re: Witch box ? Keith Stein <keithstein111@gmail.com> - 2018-11-09 07:40 +0000
Re: Witch box ? "Chris M. Thomasson" <invalid_chris_thomasson@invalid.invalid> - 2018-11-08 23:42 -0800
Re: Witch box ? Keith Stein <keithstein111@gmail.com> - 2018-11-12 17:01 +0000
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