What is the purpose of a Chi-square test for goodness of fit?

  • To compare the means of two groups
  • To compare the variance of two groups
  • To determine the correlation between two variables
  • To test if a data set follows a given theoretical distribution
The Chi-square test for goodness of fit is used to test whether the observed data fits a specific distribution. It compares the observed data with the values that would be expected under the theoretical distribution.
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