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Missy
science forum beginner

Joined: 02 Jul 2006
Posts: 5

Posted: Thu Jul 13, 2006 12:10 am    Post subject: A new one - Please explain

1. What in the world is a Chi-squared Distribution? I looked it up on
the internet and still do not have a clue.
Ken Pledger
science forum Guru Wannabe

Joined: 04 May 2005
Posts: 268

Posted: Thu Jul 13, 2006 2:27 am    Post subject: Re: A new one - Please explain

"Missy" <tawanda.green@yahoo.com> wrote:

 Quote: 1. What in the world is a Chi-squared Distribution? I looked it up on the internet and still do not have a clue.

You may like to try the <sci.stat.edu> news group for that one.

Ken Pledger.
dmmcmah@gmail.com
science forum beginner

Joined: 10 Apr 2006
Posts: 7

Posted: Fri Jul 21, 2006 6:08 am    Post subject: Re: A new one - Please explain

A Chi-squared distribution is used in statistical analysis.
Statisticians have what they call a "goodness of fit" test. Basically,
this is a test that compares observed frequencies of some phenomenon
with the theoretically predicted frequencies.

A Chi Square distribution can be used to test whether or not the
differences between observed frequencies and predicted frequencies are
small enough to be due to chance.

David McMahon
Author of Calculus In Focus
http://www.quantumphysicshelp.com/calculus.htm

Missy wrote:
 Quote: 1. What in the world is a Chi-squared Distribution? I looked it up on the internet and still do not have a clue.

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