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Article #286

Re: Logic and stuff

#286
From: CORRUBLE Vincent
Date: Wed, 18 Nov 1992 11:53
43 lines
2534 bytes
In article <BxwG6E.Evs@acsu.buffalo.edu>, rmr@acsu.buffalo.edu (Richard
M. Romanowski) writes:
|> frank@i1.msi.umn.edu (Loren Frank) writes:
|> (..)
|> >	On a slightly related topic, when people are given the following
|> >scenario :Linda has been very active in social concerns for most
|> >of her life. During college she was involved in a number of organizations
|> >whose aim was to bolster the rights of the underrepresented. 
|> >People are then asked "which of the following is more likely:
|> >1) Linda is a bank teller.
|> >2) Linda is a bank teller and active in the feminist movement."
|> >1) Linda is a bank teller.
|> >2) Linda is a bank teller and active in the feminist movement."
|> >People almost always choose 2) even though the likelyhood of a conjunction
|> >is always less than the likelyhood of one of the conjuncts.
|> 
|> >I am not quite sure what that means, but it is true...
|> 
|> 
|> 	I do not know anything, but I THINK it means that people don't
|> care about the bank teller part -- whether or not it is true is irrelevant
|> to them, because the part about feminism seems so intuitively correct.
|> 
|> 	Conclusion: confronted with a pattern that seems to reflect 
|> reality, people toss logic out the window, which is perhaps why we pretend
|> that math is unemptional.  If we believed it related to reality,
|> perhaps we would not be able to do it.
|> 
|> Luck
|> Rick

I think the way people perceive/understand the experiment is the reason
why they
think that 2 is more likely than 1
They hear
|> >1) Linda is a bank teller.
|> >2) Linda is a bank teller and active in the feminist movement."
but they perceive
|> >1) Linda is a bank teller and she is NOT active in the feminist movement.
|> >2) Linda is a bank teller and active in the feminist movement."
since this dichotomic question is much more common than a attribute with
a "don't know"
value.
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Message-ID: <1992Nov18.115306.18277@jussieu.fr>
Path: arc1-ca.pugleaf.net!sparky!uunet!usc!sol.ctr.columbia.edu!ira.uka.de!math.fu-berlin.de!news.netmbx.de!Germany.EU.net!mcsun!julienas!jussieu!lpia6!corruble
References: <1992Nov18.035416.23721@news2.cis.umn.edu> <BxwG6E.Evs@acsu.buffalo.edu>

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From: corruble@lpia6.ibp.fr (CORRUBLE Vincent)
Subject: Re: Logic and stuff
Message-ID: <1992Nov18.115306.18277@jussieu.fr>
Sender: news@jussieu.fr (Le Facteur)
Nntp-Posting-Host: lpia6.ibp.fr
Reply-To: corruble@lpia6.ibp.fr (CORRUBLE Vincent)
Organization: Universite Paris VI/Paris VII
References: <1992Nov18.035416.23721@news2.cis.umn.edu> <BxwG6E.Evs@acsu.buffalo.edu>
Date: Wed, 18 Nov 1992 11:53:06 GMT
Lines: 43