Graphs and Diagrams

Types of Graphs

Line Graphs

Comparing various sets of data can be complicated, but line graphs make it easy. The plotted peaks and dips on the grid allow you to monitor and compare improvement and decline. Scientists use line graphs all the time, as do all types of professionals and students. Learn more about line graphs—the most popular type of graph.

Bar Graphs

Pleasing to the eyes, bar graphs compare data in a simple format consisting of rectangular bars. With a few varieties to choose from, settling on the right bar graph might be confusing. Should you go with a horizontal, vertical, double or group bar graph? Read on to find out.

Pictographs

You first encounter pictographs during childhood and bump into them all through life—at school, work, and all over magazines and on TV. These diagrams, which use small picture symbols to compare information, are a media favorite; statisticians, though, do not share the sentiment. Find out why, and learn more about the uses of pictographs.

Pie Charts

Simple to make and simple to understand, a pie chart is a popular form of data comparison, consisting of a circle that is split into parts. When should you use pie charts, and when should you not? Learn about their advantages and disadvantages, and get some tips on making pie charts.

Cosmographs

A cosmograph is a type of chart that shows comparisons. In doing so, it makes life and work easier. If you want to prepare an input-output model for your organization, or compare the features of a geographical region through a simple visual, cosmographs come in handy. Find out how a cosmograph can help you.

Organizational Charts

These diagrams represent the relationships between the different positions and ranks of a company through a series of boxes that go from top to bottom and side to side. Not only does an organizational chart add order and structure to an organization, but it also shows if changes are needed. Get more information on organizational charts.

Flow Charts

When projects seem overbearing and processes seem complex, flow charts can save the day by break things down into smaller steps and giving you a clearer idea of the overall process. Shapes are typically used to represent the components of a flow chart. Find out what these shapes represent and learn more about flow charts.

A pictograph is a graph that uses pictures or symbols to display information.

The pictures in a pictograph usually represent more than one item.

The following is a pictograph:

The graph above has a title and a scale. Let say that the circles were drawn by David, Peter, John, Brown, and Jennifer.

The title is "number of circles drawn"

The scale used is the following: one circle represents 5 circles.

David drew 15 circles since we have 3 circles and each circle represents 5 circles.

John drew 7.5 circles. How did we get 7.5?

Note that if a circle represents 5 circles, half a circle will represent 5/2 circles or 2.5 circles.

Add 5 circles to 2.5, give 7.5

Exercise:

Construct a pictograph with the following table:

Here is the pictographs: