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STAT 206: Chapter 2 (Organizing and Visualizing Variables) Methods to Organize and Visualize Variables For Categorical Variables: Summary Table; contingency table (2.1) Bar chart, pie chart, Pareto chart, side-by-side bar chart (2.2) For Numerical Variables (Array), Ordered Array, frequency distribution, relative frequency distribution, percentage distribution, cumulative percentage distribution (2.3) Stem-and-Leaf display, histogram, polygon, cumulative percentage polygon (2.4) Other methods later… 2.1 Organizing Categorical Variables Must identify variable type to determine the appropriate organization and visualization tools èRecall Variable Types Categorical (Category)