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Re: Are you a "Mental Gymnast"?

Subject: Re: Are you a "Mental Gymnast"?
From: David Purdue <dp18367 -at- iplanet -dot- com>
To: "TECHWR-L" <techwr-l -at- lists -dot- raycomm -dot- com>
Date: Wed, 22 Jan 2003 17:07:19 +1100


John Fleming wrote:


Methinks such an interviewee could have a field day with it.

As a couple of us have pointed out, the logic behind the answer posted in the FAQ is in error.

The interviewee could give the interviewer the FAQ answer and then explain *why* the answer in the FAQ is wrong.


But then the interviewee would blow their chance at employment,
given that the FAQ answer in NOT wrong.


In this case, the underlying probability theory is something many of us learned in high school math, so it's not really that complicated.


The probability is not complicated, but thinking through a problem
without making assumptions is difficult.

(Your assuption is that the 2nd choice of door is made at random.
If it is, then the chance of winning is 50-50. However, if you
always choose the door you did not choose before - i.e. make a
non-random choice - you can lift your chance of winning to 2/3.)

DavidP



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References:
Re: Are you a "Mental Gymnast"?: From: John Fleming

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