Open map List

Bubble chart

A bubble chart is a type of data visualization that displays data points as bubbles in a two-dimensional space, where the size of each bubble represents a third variable. It is an extension of a scatter plot, adding another layer of information through bubble size.

Basic

Introduction

Key Features of a Bubble Chart:

  • Three Data Dimensions:
    1. X-axis – Represents one variable.
    2. Y-axis – Represents a second variable.
    3. Bubble Size – Represents a third variable (e.g., magnitude, population, or revenue).
  • Color Coding (Optional): A fourth variable can be represented using different colors for the bubbles.
  • Used for Comparative Analysis: Helps visualize relationships between three or more variables.

Explanation

Common Applications of Bubble Charts:

  1. Economic Analysis:
    • Comparing GDP, population, and income levels of different countries.
       
  2. Business & Marketing:
    • Visualizing sales revenue, profit, and number of stores per region.
       
  3. Environmental Studies:
    • Mapping pollution levels, temperature, and population density in different cities.
       
  4. Healthcare & Demographics:
    • Analyzing disease prevalence, healthcare spending, and life expectancy.

Examples

Example Use Case:

  • A bubble chart of global economies might use:
    • X-axis: GDP per capita
    • Y-axis: Life expectancy
    • Bubble size: Population of each country

Outgoing relations