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For the same sorts of uses as they are today : to illustrate how a total value is divided into smaller groups.

A pie chart (a circle divided into slices of various angular widths) is used to show comparative percentages within a whole. The size of a slice is proportional to the share that is assigned to a given subgroup, role, or division. For example, a pie chart for business revenue can be divided into wedges showing the sources of that revenue (sales, stock dividends, Franchising), and the sales wedge could be 2/3 or 3/4 of the pie, with other earnings areas having smaller slices.

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Q: Why were pie charts used in 1801?
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Related questions

What are pie charts best at doing?

pie charts are best used for business


What are pie charts used for?

they are used for percentages of a whole.


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Are angles used in Pie Charts?

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When should pie charts be used?

When you need to put information together.


Does a pie chart in excel compare distinct unrelated objects or trends?

Pie charts are not normally used for trends.


Which is a disadvantage of pie charts?

Pie charts only show you the percentage, But it dose not show you the major trends in a pie chart


When was the pie chart made?

1801


What charts commonly used in PowerPoint presentations are?

Bar, Column, Line & Pie.


Why are charts called pie charts and not pizza charts?

One view:Because they just are. Pi is a Greek letter and most mathematics came from the Greeks.Another view:According to wikipedia, it is spelled the same as "pie" because it is named for its resemblance to a pie which has been sliced. The wikipedia goes on to suggest "The earliest known pie chart is generally credited to William Playfair's Statistical Breviary of 1801." The originator of the chart might not have been familiar with the Napoletana cuisine at that time he conceived of its name.One more view:Pi is an integral part of the circle. R=(pi)r2. A pie chart is a circle.


How are pie and bar charts the same and different?

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What Excel charts display sectors?

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