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## What are the advantages of chart?

• show each data category in a frequency distribution.
• display relative numbers or proportions of multiple categories.
• summarize a large data set in visual form.
• clarify trends better than do tables.
• estimate key values at a glance.
• permit a visual check of the accuracy and reasonableness of calculations.

## Why are pie charts bad?

The basic premise is that pie charts are poor at communicating data. They take up more space and are harder to read than the alternatives. The brain’s not very good at comparing the size of angles and because there’s no scale, reading accurate values is difficult.

## What are the advantages of using a pie chart?

Let us see advantages of pie chart now. Pie charts are most commonly used for the graphic in business reports and presentations. They also are frequently used in journalism.

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## Why do I have two slices in a pie chart?

The chart as a whole represents the sum of all its data; individual slices show each piece of data as a percentage of the whole. If you create a pie chart showing product line performance, for example, and you have two lines that each account for 50 percent of turnover, your pie chart will simply have two halves.

## When did the pie chart become so popular?

It gained popularity in the early 1800’s; when a Scottish engineer used a pie chart to represent his statistical study. Ever since then this chart is praised for its intuitive readability but also criticized for the lack of accuracy. However, it remained under the popular chart ever since then.

## How is a doughnut chart like a pie chart?

Doughnut charts are very much like pie charts and show the relationship between the parts and the whole data. In this chart, more than one series can be plotted. The more the number of series is, the more rings can be added into the doughnut chart. Labels and text boxes can be added to explain what each ring in the doughnut denotes.

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