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Measures of Dispersion, Mean Deviation, Variance and Standard Deviation and the board questions built on them — roughly 5 marks of the paper.
What this chapter covers
- 1Measures of Dispersion
- 2Mean Deviation
- 3Variance and Standard Deviation
- 4Coefficient of Variation
These lessons are being recorded. The written notes for this chapter are free to download now.
Learning resources
Seedha Notes
Chapter notes withimportant points,examples & format
View Notes for Statistics, MathematicsPractice Questions
Important questions,board questions,numericals
Practice Now for Statistics, MathematicsPrevious yearquestions withfull solutions
View PYQs for Statistics, MathematicsSample Paper
Board patternsample paper withmarking scheme
Open Paper for Statistics, Mathematics
In the notes
Topics covered
- 01Measures of Dispersion17:38
- 02Mean Deviation18:06
- 03Variance and Standard Deviation27:53
- 04Coefficient of Variation16:14
After this chapter you can
- Explain measures of dispersion without reading from the book
- Present mean deviation in the format the marking scheme rewards
- Attempt every previous year question set on this chapter
- Marks
- 5
- PYQs
- 24
- Video
- 1h 20m
Then do the work
- One-shot revision, 20 minutes
- Formula sheet for this chapter
- Printable summary, 2 pages
Prepare
| Year | Asked as | Marks |
|---|---|---|
| 2025 | Short answer | 2 |
| 2024 | Long answer | 4 |
| 2023 | MCQ set | 6 |
| 2022 | Case based | 2 |
| 2021 | Short answer | 4 |
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