Helpful tips

How do you evaluate a pie chart?

How do you evaluate a pie chart?

To interpret a pie chart, compare groups.

  1. When you interpret one pie chart, look for differences in the size of the slices.
  2. When you compare multiple pie charts, look for differences in the size of slices for the same categories in all the pie charts.

What is the golden rule of pie charts?

Golden Rule: The Data is Key Pie charts are not comparison charts—they show composition, and you shouldn’t base your research findings or important business strategies on comparing proportions. Proportions might be a good starting argument to make a point, but do you really want to make them the center of attention?

What are guidelines for constructing pie charts?

So, if you must use a pie chart, try to abide by these rules:

  • Don’t use more than five sections. Too many skinny slices are hard to read.
  • Place the largest slices from “12” at the top (like on a clock) and work your way around the circle. Like this:
  • Avoid comparing one pie chart to another.
  • Don’t use 3-D pie charts.

What are the strengths of pie charts?


  • display relative proportions of multiple classes of data.
  • size of the circle can be made proportional to the total quantity it represents.
  • summarize a large data set in visual form.
  • be visually simpler than other types of graphs.
  • permit a visual check of the reasonableness or accuracy of calculations.

What is a pie chart explain with an example?

Pie charts are used in data handling and are circular charts divided up into segments which each represent a value. Pie charts are divided into sections (or ‘slices’) to represent values of different sizes. For example, in this pie chart, the circle represents a whole class.

How do you explain a pie chart in a presentation?

A pie chart is a type of graph in which a circle is divided into sectors that each represents a proportion of the whole. Pie charts are a useful way to organize data in order to see the size of components relative to the whole, and are particularly good at showing percentage or proportional data.

What 4 rules are used in the visualization process?

Rules of Data Visualisation

  • Rule #1: Ensure Your Visualization Answers a Question.
  • Rule #2: Use The Right Method Of Visualization.
  • Rule #3: Make Your Graphs And Charts Readable.
  • Rule #4: Use ‘Clean’ Fonts!
  • Rule #5: Consider Your Audience.
  • Putting It All Together.
  • Where to go from here?

What are some visualization rules?

Following these 10 Golden Rules will help you create the most successful data visualizations.

  • 1Begin with a goal.
  • Know your data.
  • Put your audience first.
  • Be media sensitive.
  • Choose the right chart.
  • Chart smart.
  • Use labels wisely.
  • Design to the point.

Why are pie charts bad?

Pie charts are one of the most overused graphs in the world and in most cases are not the best way to present data. They often distort the information and make it more difficult for decision-makers to understand the messages they contain.

What is the advantage and disadvantage using a pie chart?

If too many pieces of data are used, pie chart becomes less effective. They themselves may become crowded and hard to read if there are too many pieces of data, and even if you add data labels and numbers may not help here. You need a series to compare multiple sets as this chart only represents one data set.

What is the purpose of pie charts?

Pie charts can be used to show percentages of a whole, and represents percentages at a set point in time. Unlike bar graphs and line graphs, pie charts do not show changes over time.

How to write a pie chart for an introduction?

After writing the introduction paragraph, now you should start writing the body content of the pie charts. Usually two pie charts will be given in comparison to each other. For good analysis of these charts, you can figure out it important features in the following TWO ways:

Do you have to compare two pie charts in a question?

If you see two pie charts in a question, you will have to compare them in your writing. However, if there is only one pie chart, you will need to discuss the information you observe. As you can see, the strategies are quite different, so it’s important you are prepared for both question types. Now let’s get started!

Which is better a pie chart or a donut chart?

The comparison between separate pie or donut charts is also largely meaningless, and should be avoided. To show progression over time, line and bar charts are much better suited. To compare two different kinds of data (absolute numbers and fractions), it makes more sense to split them up by data to compare than by year.

How to write a pie chart for Jamestown?

Summarise the information by selecting and reporting the main features. Write at least 150 words. The given pie chart provides information about the proportion of people using digital networking according to age group for Jamestown for the year 2018. The chart below gives the percentage of social media users by age in Jamestown in 2018.