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Notice Truncation!

Notice Truncation!

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Notice Truncation!

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  1. Analyze the following graphs Notice Truncation!

  2. Cumulative Frequency Distributions, Stemplots, and Dotplots Sections 2.5 – 2.7

  3. Cumulative Frequency Distributions • For Quantitative Data only. • Use same lower limit for all classes. • Change upper limits.

  4. Ogive: Curve created by plotting cumulative frequencies

  5. Stem-and-Leaf Display (Stemplot) • Quantitative Data. • Histogram on end. • Shows individual data

  6. Dotplots • Simplest for Quantitative. • Helps detect outliers. • Shows clusters of data. • Easy to compare data sets (stacked dotplots)

  7. To make a Dotplot

  8. Figure 2.20 (p. 60)Dotplots of RBIs for Boston and St. Louis Baseball Teams.