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MMLU / Which of the following is not true with regard to contingency tables for…

Problem

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question

Which of the following is not true with regard to contingency tables for chi-square tests for independence?

choices

  1. The categories are not numerical for either variable.
  2. Observed frequencies should be whole numbers.
  3. Expected frequencies should be whole numbers.
  4. Expected frequencies in each cell should be at least 5, and to achieve this, one sometimes combines categories for one or the other or both of the variables.

subject

high_school_statistics

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