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Chi^2 (What is it?)

  1. Aug 30, 2006 #1
    Does anyone know what Chi^2 is? and if the smaller or larger number is better when computing data......I can't find an answer on the web
  2. jcsd
  3. Aug 30, 2006 #2
    search term

    Try typing: chi squared, it gets some results such as http://mathworld.wolfram.com/Chi-SquaredDistribution.html" [Broken]
    Last edited by a moderator: May 2, 2017
  4. Aug 30, 2006 #3

    Andrew Mason

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    Are you talking about statistics or electro-magnetism?

  5. Sep 1, 2006 #4


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    Chi^2 tells how FAR the presumed fit is from actually DESCRIBING the data.
    Chi^2 _much_ larger than 1 means you have the wrong model ...
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