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MathGroup Archive 2001

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Re: Rearrangement of a sequence into random order

  • To: mathgroup at smc.vnet.net
  • Subject: [mg28441] Re: [mg28434] Rearrangement of a sequence into random order
  • From: "Hugh Philipp" <hph at com.dtu.dk>
  • Date: Thu, 19 Apr 2001 03:26:29 -0400 (EDT)
  • References: <200104180723.DAA17248@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

How about:

<<DiscreteMath`Permutations`

RandomPermutation[20]


but of course... how random is 'random'?


-Hugh Philipp

----- Original Message -----
From: "Loren Dill" <lorendill at mediaone.net>
To: mathgroup at smc.vnet.net
Subject: [mg28441] [mg28434] Rearrangement of a sequence into random order


> Hi,
>
> I'm a math teacher, and need to prepare exams from time to time.  I
> typically prepare questions for the exam in a sequential order starting at
> the beginning of the material and going to the end.  I may have something
> like 20 short-answer questions.  I want a program that will randomize the
> order of the questions.  In other words, I want to provide n, the number
of
> questions, and have the program provide a list of length n that contains
all
> the numbers from 1 to n in a random order without any number being
repeated
> or omitted.  I'm sure that this is an easy task for Mathematica, but I
can't
> figure out the best way to do it.
>
> Loren Dill
>



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