Access the official NCERT Class 10 Mathematics textbook for Chapter 13 – Statistics PDF. This chapter focuses on how data is collected, organized, and interpreted using measures of central tendency (mean, median, mode) for both grouped and ungrouped datasets. It also covers cumulative frequency, and graphical methods like histograms, frequency polygons, and ogives—vital tools for analyzing real-world information and scoring well in board exams.
Chapter Highlights:
- Definition and scope of Statistics: collecting and organizing data
- Measures of Central Tendency:
- Mean – direct, assumed mean & step deviation methods
- Median & Mode – for grouped & ungrouped data
- Frequency Distributions: grouped vs ungrouped data tables
- Graphical Representations:
- Histograms & Frequency Polygons
- Cumulative Frequency Curves (Ogives)
- Finding Median/Mode using Ogives and formulas for grouped data
- Relationship between Mean, Median & Mode in a dataset
- Real-world applications: surveys, experiments, and data analysis exercises