In my physics honours lab to check our "goodness of fit" we have to use the Chi-squared and reduced Chi-squared equations.(adsbygoogle = window.adsbygoogle || []).push({});

For the Lab we use the text Bevington Data analysis and error reduction. I'm having a problem on determining whether or not my chi-squared values are good because the book states that chi-squared should be close to zero while the reduced chi-squared should be close to 1.

this obviously doesn't make sense because you divide chi-squared by the number of degrees of freedom which is a positive integer number.

Can somebody please explain to me the meaning of both reduced and chi-squared numbers?

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# Chi-squared and reduced Chi-squared

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