Chapter 9: Data Handling
๐ About this chapter
Collecting data, tally marks, pictographs, bar graphs and mean โ introduction to statistics.
๐ฏ
Learning Objectives
By end of this chapter you will:
1
Understand Collecting and Recording Data and Pictograph2
Apply 2 key formulas3
Perform 1 practised experiment4
Define: Data, Tally marks, Pictograph5
Solve NCERT exercises confidently๐ Prerequisites
๐Chapter 8 concepts
๐ Chapter Stats
Difficulty๐ฑ Beginner
Est. Time50 min
Topics4
Formulas2
Experiments1
Progress0%
๐ก Did You Know?
โฆStatistics is used in cricket (batting average), medicine, business, weather forecasting
โฆMean is what most people call "average"
โฆIndia's census data is collected every 10 years
๐ Key Terms(click any term for AI explanation)