Chapter 10

Understanding Descriptive and Inferential Statistical Methods

This chapter covers Objective 3.1 (Given a scenario, apply the appropriate descriptive statistical methods) and Objective 3.2 (Explain the purpose of inferential statistical methods) of the CompTIA Data+ exam and includes the following topics:

  • Images Measures of central tendency

  • Images Measures of dispersion

  • Images Frequencies and percentages

  • Percent change

  • Percent difference

  • Confidence intervals ...

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