Chi-Square Goodness of Fit Calculator

Test if observed frequencies match expected frequencies.

Chi-square Contribution

0.5000

Deviation (O - E)-5.00
Gradi di Liberta4

Chi-square Contribution vs Observed Frequency

Vedi formula →

Formula

## Chi-Square Goodness of Fit **chi2 = Sum((O-E)^2/E)** Tests observed vs expected frequency distribution.

Esempio Risolto

O=45, E=50, k=5.

  1. 01chi2 = 25/50 = 0.5
  2. 02df = 4

Domande Frequenti

Min expected?

At least 5 per category.

Significant result?

Observed differs from expected.

Vs independence test?

Goodness of fit tests one variable; independence tests two.

Impara

Understanding the Normal Distribution

Calcolatrici Correlate

Chi-Square Independence

Two-variable independence.

Z-Test

Test population mean.

One-Way ANOVA

Compare group means.