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st: riddle


From   Maarten buis <maartenbuis@yahoo.co.uk>
To   stata list <statalist@hsphsun2.harvard.edu>
Subject   st: riddle
Date   Wed, 19 Dec 2007 13:03:07 +0000 (GMT)

In a previous post I claimed that the x-s in the graph below represent
the regression line (of x1 on x2, though I did not specify that
explicitly). Assuming that each symbol represent a datapoint, than this
is a mistake. It is a minor point, and does not change the point I made
in that previous post.

Does anybody else see my mistake? (maybe a nice exam question?)

  |      *x*
  |    **x**
  |   **x**  
x1|  **x** 
  | **x**
  |**x**
  |*x* 
  --------------- 
        x2                  

-- Maarten

-----------------------------------------
Maarten L. Buis
Department of Social Research Methodology
Vrije Universiteit Amsterdam
Boelelaan 1081
1081 HV Amsterdam
The Netherlands

visiting address:
Buitenveldertselaan 3 (Metropolitan), room Z434

+31 20 5986715

http://home.fsw.vu.nl/m.buis/
-----------------------------------------


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