Chapter 9: Data Handling

Collecting data, tally marks, pictographs, bar graphs and mean — introduction to statistics.

0/4 topics

📖4Topics

📐2Formulas

🔬1Experiments

🎬1Videos

🔑7Key Terms

💡3Quick Facts

📘 About this chapter

Collecting data, tally marks, pictographs, bar graphs and mean — introduction to statistics.

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Learning Objectives

By end of this chapter you will:

Understand Collecting and Recording Data and Pictograph

Apply 2 key formulas

Perform 1 practised experiment

Define: Data, Tally marks, Pictograph

Solve NCERT exercises confidently

🔗 Prerequisites

📌Chapter 8 concepts

📊 Chapter Stats

Difficulty🌱 Beginner

Est. Time50 min

Topics4

Formulas2

Experiments1

Progress0%

💡 Did You Know?

✦Statistics is used in cricket (batting average), medicine, business, weather forecasting

✦Mean is what most people call "average"

✦India's census data is collected every 10 years

🔑 Key Terms(click any term for AI explanation)