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A graphical display should:

Learn how to create impactful graphical displays such as Bar Graph, Pareto Chart, Circle Graph, Time Plot, and Time Series to effectively present data for analysis and decision-making. Each technique is explained in detail with examples and best practices.

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A graphical display should:

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  1. A graphical display should: • Show the data • Induce the viewer to think about the substance of the graphic • Avoid distorting the message

  2. Bar Graph • bars of uniform width • uniformly spaced • may be vertical or horizontal • lengths represent quantities being compared • provide title, labels for each bar and lengths of bars

  3. Pareto Chart • tool of quality control • start with a bar chart • arrange bars in decreasing order of frequency • frequently used to investigate causes of problems

  4. Circle Graph (Pie Chart) • shows division of whole into component parts • label parts with appropriate percentages of the whole

  5. Time Plot • Shows data values in chronological order • time on horizontal scale • variable being measured on vertical scale • connect data points with line segments

  6. Time Series • Time series are data sets composed of similar measurements taken at regular intervals over time. • A time plot can reveal some features of a time series.

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