Chi-Square Goodness of Fit Calculator
Test whether independent categorical observations follow a specified distribution. Observed counts must be whole numbers; expected counts must be positive and have the same total.
Enter the actual counts for each category
Enter the expected counts for each category (must match number of observed)
Use 0 for probabilities specified before seeing the data. Subtracting fitted parameters from df is appropriate for regular models estimated by efficient maximum likelihood. Other fitting procedures or data-dependent category choices can require a different reference distribution; this adjustment is not a general correction.
