# Difference between revisions of "SOCR EduMaterials Activities BubbleChart"

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## Background

Bubble Charts is a process to illustrate three dimensional data in a two dimensional charts. The size of the market is proportional to a third set of values on a grid according to the standard X and Y values. It is useful for data set of hundreds to thousands of values.

For reference: Graphing Bubble Charts

## Goals

• To show a step-by-step procedure of using the SOCR Bubble Chart
• Relating the demonstration with other possible activities

## Description

Go to the SOCR Charts and select Miscellaneous from the items located on the left, then select Bubble Chart Demo:

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Note that below the graph shows the numerical values for mean, standard deviation, and median.

## Example & Exercises

Allometric relationship between population density, body mass and metabolic activity in Plants

Use the Allometric relationship between population density, body mass and metabolic activity in Plants Dataset to generate a Bubble plot of the population density (number/m2).

## Data Type and Format

By clicking Data between the Graph and Mapping button, it allows users to input or vary the values of the data set. For Bubble Charts, users only need to gather numerical values of the data set. In the data table, the X-Y variables represent the point at which the bubbles will be centered and the Z variable represents the length or diameter of the bubbles. After the input of these data tables, SOCR will automatically graph these bubbles on the charts:

## Applications

One of the most persuasive elements when proposing data and literature to others is a well-designed chart presentation.

The Bubble Chart is useful for large sets of values so scientists may use this type of chart when presenting a simple display of red blood cell counts in different ages of humans.

Bubble Charts may also be used for researchers who study the population of ants in different parts of the state, country, continent, or world.