What is the difference between circle graphs and bar graphs

The graph the lines run can represent the years to and the "ups and downs" of the unemployment rate of each city over the course of 20 years can be accurately compared. A bar graph is very similar to a line graph in the sense that it is designed to show different values of two or more subjects but instead of using lines it using horizontal and vertical bars that represent a different value.

There are numbers along the side of a bar graph and they are scales identical to what would be found on a line graph. In a way, this type of graph is somewhat easier to read than a line graph and it conveys informational equally as well. A pie chart serves the same purpose of a line graph and a bar graph in the sense it is designed to show differences between two separate subjects although it eschews the common linear style found in the two other graphs.

Sometimes the shapes look like slices taken out of a pie and this is where it gets the nickname of a pie chart. It is probably the easiest chart to read and is commonly used in marketing and business presentations.

But what happens when you yourself are the person who is supposed to create a chart? Sometimes you will see a segment of the drawing separated from the rest of the pie in order to emphasize an important piece of information.

This is called an exploded pie chart. Chart 5. This point is clearly emphasized by its visual separation from the rest of the pie. Pie charts are also one of the most commonly used charts because they are simple to use. Despite its popularity, pie charts should be used sparingly for two reasons.

First, they are best used for displaying statistical information when there are no more than six components only—otherwise, the resulting picture will be too complex to understand. Second, pie charts are not useful when the values of each component are too similar because it is difficult to see the differences between slice sizes.

A pie chart uses percentages to compare information. Percentages are used because they are the easiest way to represent a whole. For example, if you spend 7 hours at school and 55 minutes of that time is spent eating lunch, then To present this in a pie chart, you would need to find out how many degrees represent This calculation is done by developing the equation:.

Therefore A pie chart is constructed by converting the share of each component into a percentage of degrees. In Chart 5. Pie Charts: Visuals for people learning about pie graphs.

Interactive Graph: An interactive pie graph with explanations. Overview : An overview of pie graphs and their uses. Definition: Clearly defines a pie graph. Resources: A list of links that provide information about pie graphs. Pie Graph Quiz : Quiz to test your knowledge about pie graphs. Pie Chart Tips: Some tips on constructing pie charts. Using Pie Charts : Explains how and when to use pie charts.

Bar Graph A bar graph, or bar chart, is used to represent values in relation to other values. These graphs can be horizontal or vertical. Bar Graph : A paragraph that explains bar graphs.

Statistical Graphs: Shows how bar graphs are used. Interactive Bar Graph : An interactive bar graph that allows a user to manipulate it.

Review of Bar Graphs: Discusses bar graphs and their uses.