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The test used to decide whether two categorical variables are related is the chi-square:
ATest for normality
BTest for symmetry
CTest of independence
DGoodness-of-fit test
Answer & Solution
Correct answer: C. Test of independence
1. Chi-square supports several different questions about categorical data.
2. One task is to conduct and interpret chi-square test of independence hypothesis tests.
3. That test asks whether two variables are independent of one another.
4. Goodness-of-fit instead compares one variable against a claimed distribution.
_Source: OpenStax Introductory Statistics 2e (CC BY 4.0), Ch 11 'The Chi-Square Distribution', sections 11.1-11.5_
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