This chapter presents two important interrelated topics in statistics: central tendency and variability. Measures of central tendency show how similar the data points in a set of data are, while measures of variability show how much the data points vary. The first half of this chapter discusses three important measures of central tendency, the mean, median, and mode. In the second half, it will cover three measures of variation, the range, standard deviation, and variance.
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Type Book ChapterPub Date 11/1/2008Stock # PB229X_3