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Variables and Data Collection

Variables

Answers


  1. Answer: The qualitative variables are hair color and gender.

  2. The independent variable is handedness. Since there are three types of handedness, the number of levels is 3.

  3.  Athletic ability is the dependent variable.

  4. The variable is discrete because the rating scale contains only 12 points and therefore is not continuous. Athletic ability is a discrete quantitative dependent variable.

  5. The independent variable is the number of hours of sleep.

  6. The dependent variable is the recall score on a memory test.