Pareto chart

(noun)

a type of bar graph where where the bars are drawn in decreasing order of frequency or relative frequency

Related Terms

  • relative frequency distribution
  • frequency distribution

Examples of Pareto chart in the following topics:

  • Do It Yourself: Plotting Qualitative Frequency Distributions

    • Qualitative frequency distributions can be displayed in bar charts, Pareto charts, and pie charts.
    • Create a two column chart, with the titles of Color and Frequency, and fill in the corresponding data.
    • A special type of bar graph where the bars are drawn in decreasing order of relative frequency is called a Pareto chart .
    • The distribution can also be displayed in a pie chart, where the percentages of the colors are broken down into slices of the pie.
    • This pie chart shows the frequency distribution of a bag of Skittles.
  • Exploratory Data Analysis (EDA)

  • The only pie chart you will see in this book

    • While pie charts are well known, they are not typically as useful as other charts in a data analysis.
    • A pie chart is shown in Figure 1.41 alongside a bar plot.
    • It is generally more difficult to compare group sizes in a pie chart than in a bar plot, especially when categories have nearly identical counts or proportions.
    • A pie chart and bar plot of number for the email data set.
  • Bar Charts

    • Judge whether a bar chart or another graph such as a box plot would be more appropriate
    • Bar charts are particularly effective for showing change over time.
    • Bar charts are often used to compare the means of different experimental conditions.
    • Although bar charts can display means, we do not recommend them for this purpose.
    • Bar chart showing the means for the two conditions
  • Graphs of Qualitative Data

    • Qualitative data can be graphed in various ways, including using pie charts and bar charts.
    • One way in which we can graphically represent this qualitative data is in a pie chart.
    • In a pie chart, each category is represented by a slice of the pie.
    • Here is another important point about pie charts.
    • Bar charts can also be used to represent frequencies of different categories .
  • Graphing Qualitative Variables

    • Determine when pie charts are valuable and when they are not
    • The pie chart in Figure 1 shows the results of the iMac study.
    • A bar chart of the iMac purchases is shown in Figure 2.
    • Facts like these emerge clearly from a well-designed bar chart.
    • Pie charts and bar charts can both be effective methods of portraying qualitative data.
  • Plotting Lines

    • A line graph is a type of chart which displays information as a series of data points connected by straight line segments.
    • A line graph is a type of chart which displays information as a series of data points connected by straight line segments.
    • It is a basic type of chart common in many fields.
    • A line chart is typically drawn bordered by two perpendicular lines, called axes.
    • In statistics, charts often include an overlaid mathematical function depicting the best-fit trend of the scattered data.
  • Shapes of Sampling Distributions

    • A normal distribution is usually regarded as having short tails, while a Pareto distribution has long tails.
  • Interpreting Distributions Constructed by Others

    • Pie charts can be especially misleading.
    • Comparing pie charts of different sizes could be misleading as people cannot accurately read the comparative area of circles.
    • The usage of percentages as labels on a pie chart can be misleading when the sample size is small.
    • A perspective (3D) pie chart is used to give the chart a 3D look.
    • In the misleading pie chart, Item C appears to be at least as large as Item A, whereas in actuality, it is less than half as large.
  • Misleading Graphs

    • A perspective (3D) pie chart is used to give the chart a 3D look.
    • The use of superfluous dimensions not used to display the data of interest is discouraged for charts in general, not only for pie charts.
    • In a 3D pie chart, the slices that are closer to the reader appear to be larger than those in the back due to the angle at which they're presented .
    • In the misleading pie chart, Item C appears to be at least as large as Item A, whereas in actuality, it is less than half as large.
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