Overview

The purpose of this lesson is to learn about types of graphs and graphing guidelines

Read

There are many types of graphs and charts that are commonly used for showing data. These are listed as follows.

Bar Graphs

A Bar Graph is a type of chart, which contains labeled horizontal or vertical bars showing a piece of information and an axis. The numbers along the side of bar graph compose the axis. This is also called a histogram. Bar Graph is useful when there is a numerical comparison.

Here is an example of a bar graph:

bar graph image showing multi-color vertical bars

Line Graphs

Line graphs are use to track changes over the same period of time for more than one group. Line graphs provide a means in which to compare two or more different types of information through showing how they are similar and how they are differ. This is useful when comparisons are needed.

Here is an example of a line graph:

line graph image showing two graphed lines

Pie Charts

A pie chart is a type of a circle graph normally used in showcasing a wholesome quantity; we have to show that how this whole quantity is broken into parts. The whole quantity depicts entire sample space and the pieces of pie in the circle graph are called sectors.

Here is an example of a pie chart:

multi-colored pie chart image

Watch

Watch the following video to enhance your understanding of graphs:Graph types and guidelines

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