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Pearson chi-squared goodness-of-fit test

For observed cell counts

O_{j}

and null expected counts

E_{j}

, the statistic is

X^{2} = \sum_{j} \frac{( O _{j} - E _{j} ) ^{2}}{E _{j}} .

With

k

specified null cell probabilities and sufficiently large expected counts, its null limit is

χ_{k - 1}^{2}

.

Table of contents 54 1
- Pearson chi-squared test of independence Pearson chi-squared goodness-of-fit test 22

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