Chi-Square Test Calculator
Compute Chi-Square goodness-of-fit and 2x2 contingency table independence test statistics (χ²).
Chi-Square Statistic (χ²)
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Formula: Σ (O - E)² / E
Degrees of Freedom (df)
df = 4
k - 1 = 5 - 1
How to Use
- Enter the observed frequencies and expected frequencies.
- Select Chi-Square Test Statistic to view the chi-square statistic (χ²) and degrees of freedom (df).