Statistics

Class 9 · Mathematics · 3 lessons

This chapter, Statistics, is part of the Class 9 Mathematics syllabus under CBSE, Telangana and Andhra Pradesh boards. It contains 3 lessons — starting with Introduction to Statistics, Exercise 9.1 — Presentation of Data, Exercise 9.2 — Mean, Median and Mode — each with free, step-by-step PDF notes you can study directly in the browser or present in class in fullscreen mode. Work through the lessons in order below; later exercises in this chapter generally build on the concepts introduced in the earlier ones.

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Introduction to Statistics
Statistics and measures of central tendency.
Open
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Exercise 9.1 — Presentation of Data
Problems based on presentation of data.
Open
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Exercise 9.2 — Mean, Median and Mode
Mean, median and mode of ungrouped frequency distributions.
Open