📊 Introduction to Graphs

Last Updated: 22 Sept 2025

Graphs are visual tools that turn numbers into pictures.
They help us see data patterns quickly instead of reading long tables.

✏ Why Use Graphs

  1. Summarize big data in one picture.
  2. Find patterns or trends (growth, decline, stability).
  3. Compare groups easily.
  4. Spot mistakes or unusual points (outliers).
  5. Communicate results clearly to non-technical people.

💡 Types of Common Charts

Here are the most used charts (we will learn them one by one in detail):

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