The primary purpose of something refers to its main goal or objective. It defines why something exists or is done. Understanding the primary purpose helps in focusing on the most important aspect and ensures the correct approach to achieving the desired outcome or result in any task or project.

In this chapter students learn how to collect organize and present data. They use methods like tally marks tables and bar graphs to represent data. Students also focus on interpreting the data and making conclusions. These skills help in analyzing information and presenting it clearly for better understanding.