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Re: Witch box ?

From "Chris M. Thomasson" <invalid_chris_thomasson@invalid.invalid>
Newsgroups sci.physics.relativity, sci.physics
Subject Re: Witch box ?
Date 2018-11-08 22:38 -0800
Organization n/a
Message-ID <ps3a13$ed3$3@dont-email.me> (permalink)
References <Ys0CD.110234$Do.71201@fx31.am4> <prt7r8$dk2$1@dont-email.me> <smTED.170966$aw7.66881@fx04.am4>

Cross-posted to 2 groups.

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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.

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Thread

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 ? moroney@world.std.spaamtrap.com (Michael Moroney) - 2018-10-30 19:21 +0000
      Re: Witch box ? Edward Prochak <edprochak@gmail.com> - 2018-10-30 12:25 -0700
      Re: Witch box ? Keith Stein <keithstein111@gmail.com> - 2018-11-05 09:49 +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
  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
  [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
  Re: Witch box ? yporat08@gmail.com - 2018-10-30 23:50 -0700
  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! 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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