# Chapter 5: Central Tendency

Created by: CK-12

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In this chapter, you will learn to understand, calculate, and evaluate various measures of central tendency. Central tendencies are measures of a typical or average central value in a set. Later in the chapter, we will also discuss variability, which is the degree to which data varies from the central value.

## Chapter Outline

- 5.1. Arithmetic Mean
- 5.2. Geometric Mean
- 5.3. Harmonic Mean
- 5.4. Median - Probability and Statistics
- 5.5. Mode - Probability and Statistics
- 5.6. Calculating Variance
- 5.7. Variance Practice
- 5.8. Calculating Standard Deviation
- 5.9. Coefficient of Variation

### Chapter Summary

Various real-world uses of probability and statistics were discussed and explored. Students were given examples of multiple ways in which an understanding of probability and statistics could contribute to their own lives and activities.

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## Date Created:

Apr 03, 2013## Last Modified:

Jul 03, 2014
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