4.02 Types of Charts

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Transcript of 4.02 Types of Charts

  • 1. Types of Charts
  • 2. What you need to know:
    • This objective will explain six common charts used in business. The object of the game in this objective is to understand how each chart is used to communicate information.
    • For example, if you are trying to compare the sales of Honda Civics to the sales of Nisson Altimas, what chart will best explain the data?
  • 3. How do you know which chart to use?
    • In this PowerPoint, each chart will be defined and described with an example of the data it is most appropriately suited to represent
  • 4. Column Chart
    • The first chart we will study is a Column Chart
    • It is used to make comparisons about groups of data
  • 5. Column Chart This chart compares Senior, Junior, and Sophomore attendance rates at assemblies over a period of four months.
  • 6. Compare
    • View the next four slides to compare how the Spirit Participation data is represented in different charts and then decide which chart makes the most sense of the information
    • Remember, you are comparing attendance rates of students over a period of four months
  • 7. Stacked Bar This chart focuses more on each groups contribution to the whole for any given month
  • 8. Line This chart would be okay if we were analyzing trends in attendance rates, but it does not provide a good side-by-side comparison
  • 9. XY Scatter This chart is trying to determine if there is a correlation between the month and the attendance rate
  • 10. Pie Finally, this chart is useless for representing the data because it only allows for one data series.
  • 11. What did you think?
    • Which chart best represented the data?
    • Why?
  • 12. Stacked Bar Chart
    • The next common business chart we will view is a Stacked Bar Chart
    • It is used to represent the contribution of individual items to a whole
    • Each bar is divided into two or more parts
    • The length of the stacked bar represents a total
  • 13. Stacked Bar This example shows the contributions of three components: Computers, Printers, and Monitors to total sales during each quarter (three-month period)
  • 14. Compare
  • 15. Column This chart does not accurately represent the contributions of each part to the whole and is instead comparing them against each other
  • 16. Line What about this chart? Can you clearly identify each components contribution to the whole?
  • 17. XY Scatter Why does this chart not work?
  • 18. Pie The chart only looks at one department
  • 19. What did you think?
    • Which chart best represented the data?
    • Why?
  • 20. Line Chart
    • The next common business chart we will view is a Line Chart
    • It is used to indicate trends in data
  • 21. Line Chart
    • Which department showed the most growth?
    • Which department showed a steady increase in sales?
    • Which department showed a decline in sales?
  • 22. Compare
  • 23. Column
    • To analyze the trends in this chart, the reader must read each data series separately and then make comparisons and generalizations
    • In the line chart, trends were clearly and quickly analyzed just by looking at the lines
  • 24. Stacked Bar Does this chart describe trends?
  • 25. Pie The pie chart fails to present all of the data
  • 26. What did you think?
    • Which chart best represented the data?
    • Why?
  • 27. XY Scatter
    • The next common business chart is an XY Scatter Chart
    • Used to indicate a correlation between two or more sets of data
    • A business example of an XY Chart is one that represents the effect (if any) of caffeine on worker productivity
  • 28. XY Scatter What affect did the wait time in the principals office have on pulse rate? What affect did the wait time in the doctors office have on pulse rate? This data is fictional
  • 29. Compare
  • 30. Column As you can see, if this chart is used, the data is confusing and not easily interpreted
  • 31. Stacked Bar This chart is also hard to interpret
  • 32. Pie The pie chart, once again, is clearly not the preferred chart for representing and communicating the data!
  • 33. What did you think?
    • Which chart best represented the data?
    • Why?
  • 34. Pie Chart and Exploded Pie
    • Pie Chart: Used to represent only one series of data
      • Examples:
        • % of each expenditure in a budget
        • % of each investment type in a portfolio
      • It answers the question, What is the percentage of each part to the whole?
    • Exploded Pie: Used to emphasize one or more portions of the data
  • 35. Pie Chart Which item contributed the most percent to total sales?
  • 36.