These class 11 maths handwritten notes chapter 13 statistics have been carefully prepared for quick, one-shot revision before your CBSE Boards, JEE Main, JEE Advanced and CUET exams. Every page is written by hand with boxed formulas and clear worked steps for range, mean deviation, variance and standard deviation, according to the latest 2026-27 CBSE syllabus.
Statistics is the chapter where Class 11 Maths moves from central tendency to the spread of data. These handwritten pages turn the whole chapter into neat, colour-coded notes on measures of dispersion that students can revise in one sitting.
- Boxed formulas for range, mean deviation, variance and standard deviation, ready to copy onto the answer sheet.
- Solved steps for the shortcut method and coefficient of variation, so the arithmetic is clear at a glance.
- Pairs with the NCERT Solutions, Notes and Book PDF linked lower on this page.
What the Statistics Handwritten Notes Cover
The notes open with the idea of dispersion: how far the observations spread around a central value. They then move through the full chapter in the same order as the NCERT textbook, so nothing is missed. Each new measure is written in red ink so students can find it fast during revision.
- Range: the simplest measure of dispersion, the difference between the largest and smallest values.
- Mean deviation: about the mean and about the median, for both ungrouped and grouped data.
- Variance and standard deviation: the main measures, with the discrete, continuous and shortcut forms.
- Coefficient of variation: comparing the spread of two data sets with different means.
Because these class 11 maths handwritten notes chapter 13 statistics keep every formula inside a box, the eye jumps straight to the point. This makes them ideal for a last, fast recap the night before a test.
Key Formulas and Diagrams in the Notes
The core of the chapter is a small set of dispersion formulas and the solved steps that go with them. The notes keep these together on one page so students can revise both at once. The table below lists the formulas the pages box in colour.
| Measure | Formula |
|---|---|
| Range | Maximum value − Minimum value |
| Mean deviation about mean | M.D.(x̄) = (1/N) Σ fi |xi − x̄| |
| Mean deviation about median | M.D.(M) = (1/N) Σ fi |xi − M| |
| Variance | σ2 = (1/N) Σ fi (xi − x̄)2 |
| Standard deviation (shortcut) | σ = (1/N) √[ N Σ fi xi2 − (Σ fi xi)2 ] |
| Coefficient of variation | C.V. = (σ / x̄) × 100 |
Each measure gets its own worked step-column. A larger standard deviation means a wider spread, while a smaller coefficient of variation means a more consistent data set. Seeing the arithmetic laid out is what makes these formulas easy to recall in the exam.
How to Use These Handwritten Notes for Revision
Handwritten notes work best as a final layer of revision, not as your first read. The plan below helps students get the most out of the Statistics handwritten notes in the run-up to the exam. Follow it once a week and again the day before the test.
- First pass: read the pages once, following the range-to-standard-deviation order.
- Active recall: cover each boxed formula and write it from memory.
- Work it: build a frequency table and compute variance both directly and by the shortcut.
- Self-test: find the coefficient of variation for two data sets and compare their consistency.
Because the class 11 maths handwritten notes chapter 13 statistics come as a downloadable PDF, students can save them on a phone and revise offline on the way to the exam centre. Pair these pages with the full NCERT Solutions to check your written answers against model steps.
Student Feedback on the Statistics Handwritten Notes
Student Feedback: In a Collegedunia poll of 10,980 Class 11 Maths students before the 2026 boards, 76% of students said the boxed shortcut formula made standard deviation sums faster to solve than the direct method. Most students marked the coefficient of variation as the point they revised last before the exam.
Source: 2026-27 Class 11 Mathematics student poll. Sample of 10,980 students from CBSE schools across 14 states.
Other Statistics Class 11 Maths Resources
These handwritten notes are a revision layer. To prepare fully, students should use them with the other resources for the same chapter, all linked in the table below. Read the notes, test yourself with the solutions, then open the book PDF for the original text.
| Resource | Best used for |
|---|---|
| Statistics Class 11 NCERT Solutions | Step-by-step answers to every back-exercise question |
| Statistics Class 11 Notes | Full chapter summary with all definitions and formulas in one place |
| Statistics NCERT Book PDF | Reading the original NCERT chapter text and examples |
Tip: revise the boxed shortcut formula for standard deviation first, then compute the coefficient of variation once from memory. That single link fixes most dispersion sums.
All Class 11 Maths Handwritten Notes by Chapter
The table links the handwritten notes for every chapter of Class 11 Maths, so students can move across the course in one click. Statistics is highlighted.
| Chapter | Handwritten Notes |
|---|---|
| Chapter 1 | Sets |
| Chapter 2 | Relations and Functions |
| Chapter 3 | Trigonometric Functions |
| Chapter 4 | Complex Numbers and Quadratic Equations |
| Chapter 5 | Linear Inequalities |
| Chapter 6 | Permutations and Combinations |
| Chapter 7 | Binomial Theorem |
| Chapter 8 | Sequences and Series |
| Chapter 9 | Straight Lines |
| Chapter 10 | Conic Sections |
| Chapter 11 | Introduction to Three Dimensional Geometry |
| Chapter 12 | Limits and Derivatives |
| Chapter 13 | Statistics |
| Chapter 14 | Probability |
FAQs on Statistics Handwritten Notes
Statistics Handwritten Notes - Frequently Asked Questions
Ques. Are these class 11 maths handwritten notes chapter 13 statistics free to download?
Ans. Yes. The Statistics handwritten notes are free to download as a PDF from this page. They follow the 2026-27 CBSE syllabus and cover the full chapter in boxed, colour-coded pages for quick revision.
Ques. What topics do the Statistics handwritten notes cover?
Ans. They cover measures of dispersion, range, mean deviation about the mean and median, variance and standard deviation for grouped and ungrouped data, the shortcut method, and the coefficient of variation used to compare two data sets.
Ques. Which formula should I revise first in Statistics?
Ans. Start with variance, the mean of the squared deviations, then learn the shortcut standard deviation formula and the coefficient of variation. The notes box all three in colour so you can recall them quickly in the exam.
Ques. Are these notes enough for the Class 11 Statistics exam?
Ans. They are a strong final revision layer. For full preparation, pair them with the NCERT Solutions linked on this page so you can write out complete answers and practise the variance and standard deviation sums step by step.
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