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  # Displaying Distributions With Graphs - PowerPoint PPT Presentation
  
  Displaying Distributions With Graphs. Section 1.1. A Picture is worth a thousand words. First three rules for describing data: Make a picture Make a picture Make a picture. Categorical Data.
  
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  ## PowerPoint Slideshow about 'Displaying Distributions With Graphs' - hunter
  
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  ### Displaying Distributions With Graphs
  
  Section 1.1
  
  • First three rules for describing data:
  
  • Make a picture
  
  • Make a picture
  
  • Make a picture
  
  • The following table displays the sales figures and market share (percent of total sales) achieved by several major soft drink companies in 1999. That year a total of 9930 million cases of soft drink were sold.
  
  • Label axes
  
  • Horizontal Axis is the categories
  
  • Vertical Axis can be
  
  • Counts (Frequency)
  
  • Proportions (Relative Frequency)
  
  • Percents
  
  • Draw vertical bars to represent counts, proportions, or percents
  
  • The most accurate way to create a pie graph is to use a computer. However pie graphs can be created using estimation, or by using a protractor and using the appropriate number of degrees to create the graph.
  
  Bar Graphs show a bar that represents either the count, proportion, or percentage of each category. Bar graphs may or may not show all categories.
  
  Pie Graphs show how a “whole” divides into categories using either the proportion or percentage. To use a pie graph you must include all the categories that make up the whole.
  
  Further Resources proportion, or percentage of each category. Bar graphs may or may not show all categories.
  
  • Practice of Statistics: pg 8-9
  
  • Homework 1.1: #2
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