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The chi-square distribution can be used to find relationships between:
ANormal populations
BOnly paired samples
CTwo things compared
DContinuous variables
Answer & Solution
Correct answer: C. Two things compared
1. The distribution is introduced with a concrete comparison.
2. The chi-square distribution can be used to find relationships between two things.
3. Grocery prices at different stores is the illustration given.
4. The data being compared are counts in categories rather than continuous measurements.
_Source: OpenStax Introductory Statistics 2e (CC BY 4.0), Ch 11 'The Chi-Square Distribution', sections 11.1-11.5_
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