Vocabulary

Bar Graph: shows the number of items in specific categories.

Box Plot: shows measures of variation for a set of data.

Circle Graph: compares parts of the data to the whole.

Double Bar Graph: compares two sets of categorical data.

Histogram: shows the frequency of data divided into equal intervals.

Line Graph: shows change over a period of time.

Line Plot: shows the frequency of data with a number line.

Concepts

Determine what graphical display best represents the given data set.

Rules

Determine what type of display is needed by:

• Analyze the type of information given.

• Decide what the display is to show.

• Determine how the display will be analyzed.

Example

Select the graph best used for the given situation.

To compare parts of the data to the whole set.

Solution

A circle graph visually shows the different parts of the whole.

Pre-requisite Skills

Select Appropriate Graphs (6.2.8)