Statistics

Chi-Square GOF Calculator

Calculate chi-square goodness-of-fit statistic from observed vs expected counts.

Chi-Square GOF Calculator tests whether observed categorical counts fit an expected distribution. It is useful for quality checks, survey analysis, and model validation. The tool computes chi-square statistic and significance output from count tables. Use it to identify meaningful distribution mismatch.

Chi-Square GOF Inputs

Result

Chi-square: 2.000000

df: 3

How to use this tool

Enter observed counts and expected counts/proportions.
Run the test to compute chi-square and p-value.
Interpret significance with awareness of sample-size assumptions.

Hypothesis testing resources

Recommend statistics textbooks and data analysis courses.

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