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Overview

Explain the purpose of the measures of central tendency

Learning Goals

After successful completion of this module, students should be able to:

1. Explain the purpose of the measures of central tendency
2. Identify the three measures of central tendency
3. Calculate the mode, median, and mean
4. Differentiate and explain percentiles vs. percentages
5. Calculate percentiles
6. Explain the mathematical characteristics of the mean
7. Correctly select the appropriate measure of central tendency for a given distribution of data
8. Identify importance of outliers and relationship to skewness

Key Terms

• central tendency
• mode
• median
• percentiles
• mean
• outliers
• weighted mean
• symmetry
• positive skew
• negative skew

Assigned Reading(s)

• lorem ipsem

Extra Readings

• SPSS HMWK#3

Associated Video

Assigned PPT

Practice / Review