Also known as chi-squared test, chi square test, χ2 test
statistical test
Chi-squared distribution, showing χ on the first axis and p-value (right tail probability) on the second axis.
A chi-squared test (also chi-square or χ test) is a statistical hypothesis test used in the analysis of contingency tables when the sample sizes are large. In simpler terms, this test is primarily used to examine whether two categorical variables (two dimensions of the contingency table) are independent in influencing the test statistic (values within the table).
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Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).