## What would be the best use of a pie graph?

Pie charts are best to use when you are trying to compare parts of a whole.

They do not show changes over time..

## Should you ever use a pie chart?

Today, pie charts are anathema to most serious data visualizers. Leading experts like Edward Tufte suggest they should almost never be used. … The truth is that charts aren’t only about communicating data effectively. They’re also about aesthetics and drawing in an audience.

## How do you calculate the value of a pie chart?

Reading Pie Charts To calculate the percentage each slice is worth, measure the angle of each slice and divide this by 360 then multiply it by 100. To find the number of pieces of data each slice represents, multiply the percentage that each slice is worth by the total number of the data sets.

## How do you interpret a pie chart?

To interpret a pie chart, compare groups.When you interpret one pie chart, look for differences in the size of the slices. … 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 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 are graphs used in real life?

1 Answer. Graphs can be used in real life in many ways. For example a line graph in the form of a straight line signifies a linear relationship between two quantities represented on x-axis and y axis. … Then there are bar graphs, circle graphs which show comparative magnitude of different items at a glance.