Presenting Data in Tables and Charts (PPT)

Basic Business Statistics (8th Edition)
Chapter 2 - Presenting Data in Tables and Charts 

Chapter Topics

• Organizing numerical data
• The ordered array and stem-leaf display
• Tabulating and graphing Univariate numerical data
• Frequency distributions: tables, histograms, polygons
• Cumulative distributions: tables, the Ogive
• Graphing Bivariate numerical data

Chapter Topics

• Tabulating and graphing Univariate categorical data
• The summary table
• Bar and pie charts, the Pareto diagram
• Tabulating and graphing Bivariate categorical data
• Contingency tables
• Side by side bar charts
• Graphical excellence and common errors in presenting data

Principles of Graphical Excellence

• Presents data in a way that provides substance, statistics and design
• Communicates complex ideas with clarity, precision and efficiency
• Gives the largest number of ideas in the most efficient manner
• Almost always involves several dimensions
• Tells the truth about the data

Errors in Presenting Data

• Using “chart junk”
• Failing to provide a relative basis in comparing data between groups
• Compressing the vertical axis
• Providing no zero point on the vertical axis

“Chart Junk”

• No Relative Basis
• Compressing Vertical Axis
• No Zero Point on Vertical Axis

Chapter Summary

• Organized numerical data
• The ordered array and stem-leaf display
• Tabulated and graphed univariate numerical data
• Frequency distributions: tables, histograms, polygon
• Cumulative distributions: tables and the Ogive
• Graphed bivariate numerical data

Chapter Summary

• Tabulated and graphed univariate categorical data
• The summary table
• Bar and pie charts, the Pareto diagram
• Tabulated and graphed bivariate categorical data
• Contingency tables
• Side by side charts
• Discussed graphical excellence and common errors in presenting data 

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