Chapter 3. Describing a Single Variable

The Concept of a Distribution 41

Variable Types and Their Distributions 42

Distribution of a Categorical Variable 43

Distribution of a Quantitative Variable 47

Subsetting a Data Table 48

Constructing a Histogram for Continuous Data 49

Taking Advantage of Linked Graphs and Tables to Explore Data 54

Customizing Scale and Bars in a Histogram 54

Stem and Leaf Plots 55

Summary Statistics for a Single Variable 56

Outlier Box Plots 58

Application 59

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