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Unformatted text preview: 3 Empirical Rule If the distribution of the data is approximately bellshaped: Application of Empirical Rule Graphical Descriptive Statistics Frequency Relative frequency 1. Histograms 2. StemandLeaf Plot Example: For both histograms and stemandleaf plots, we can look at general shape of distribution: a. Symmetric b. Skewed to left (negatively skewed) c. Skewed to right (positively skewed) 4 3. Boxplots Sidebyside boxplots Distribution Shapes a. Symmetric b. Skewed to left (negatively skewed) c. Skewed to right (positively skewed) 4. Scatterplot...
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This note was uploaded on 04/28/2008 for the course ST 511 taught by Professor Prof.kimweems during the Spring '08 term at N.C. State.
 Spring '08
 Prof.KimWeems

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