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Back to 13.1 The Correlation Coefficient r

13.1 Exercise 1

Avg difficulty 2.5

In order to have a correlation coefficient between traits A and B, it is necessary to have:

  1. one group of subjects, some of whom possess characteristics of trait A, the remainder possessing those of trait B
  2. measures of trait A on one group of subjects and of trait B on another group
  3. two groups of subjects, one which could be classified as A or not A, the other as B or not B
  4. two groups of subjects, one which could be classified as A or not A, the other as B or not B

OpenStax Introductory Business Statistics 2e, 13.1 The Correlation Coefficient r, exercise 1

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Adapted from Introductory Business Statistics 2e © 2023 Rice University. Licensed under CC BY 4.0. Source: Introductory Business Statistics 2e. Imported at revision 50ec917.