Table of Contents

CBSE Mathematics Chapter 15 Statistics class 11 Notes Mathematics in PDF are available for free download in myCBSEguide mobile app. The best app for CBSE students now provides Statistics class 11 Notes Mathematics latest chapter wise notes for quick preparation of CBSE exams and school based annual examinations. Class 11 Mathematics notes on Chapter 15 Statistics class 11 Notes Mathematics are also available for download in CBSE Guide website.

## CBSE Guide Statistics class 11 Notes

CBSE guide notes are the comprehensive notes which covers the latest syllabus of CBSE and NCERT. It includes all the topics given in NCERT class 11 Mathematics text book. Users can download CBSE guide quick revision notes from myCBSEguide mobile app and my CBSE guide website.

## Statistics class 11 Notes Mathematics

Download CBSE class 11th revision notes for Chapter 15 Statistics class 11 Notes Mathematics in PDF format for free. Download revision notes for Statistics class 11 Notes Mathematics and score high in exams. These are the Statistics class 11 Notes Mathematics prepared by team of expert teachers. The revision notes help you revise the whole chapter in minutes. Revising notes in exam days is on of the best tips recommended by teachers during exam days.

# Download Revision Notes as PDF

**CBSE Class 11 Mathematics Revision Notes Chapter-15 Statistics class 11 Notes Mathematics **

**Mean:****Median**: If the number of observations is odd, then median is observation and if the number of observations is even, then median is the mean of and observations.**Measures of Dispersion, Range and Mean Deviation****Variance and Standard Deviation****Analysis of Frequency Distributions**

**Measures of dispersion**Range, Quartile deviation, mean deviation, variance, standard deviation are measures of dispersion.- Range = Maximum Value – Minimum Value
**Mean deviation for ungrouped data**

**Mean Deviation from Median for ungrouped data**

**Mean deviation for grouped data**

**Mean Deviation from Median for grouped data**

**where N =****Variance and standard deviation for ungrouped data**

Variance:

Standard deviation:**Variance and standard deviation of a discrete frequency distribution**

Variation:

Standard deviation:**Variance and standard deviation of a continuous frequency distribution**

(i) If

= 1, 2, 3, ………., is a continuous frequency distribution of a variate X,then

(ii) If

be the given observations with respective frequencies, then , where N =

(iii) If

where A is assumed mean, then(iv) If

where is the common difference of values of then**Analysis of frequency distribution with equal means but different variances**: If the S.D. of group A < the S.D. of group B, then group A is considered more consistent or uniform.**Ananlysis of frequency distribution with unequal means**: In this case we compare the coefficient of variation [Coefficient of variation (C.V. = The series having greater coefficient of variation is said to be more variable than the other.- Variance of the combined two series:

where and are the sizes of two groups, and are the S.D. of two groups, , and

## Statistics class 11 Notes

- CBSE Revision notes (PDF Download) Free
- CBSE Revision notes for Class 11 Mathematics PDF
- CBSE Revision notes Class 11 Mathematics – CBSE
- CBSE Revisions notes and Key Points Class 11 Mathematics
- Summary of the NCERT books all chapters in Mathematics class 11
- Short notes for CBSE class 11th Mathematics
- Key notes and chapter summary of Mathematics class 11
- Quick revision notes for CBSE exams

**CBSE Class-11 Revision Notes and Key Points**

Statistics class 11 Notes Mathematics. CBSE quick revision note for class-11 Mathematics, Physics, Chemistry, Biology and other subject are very helpful to revise the whole syllabus during exam days. The revision notes covers all important formulas and concepts given in the chapter. Even if you wish to have an overview of a chapter, quick revision notes are here to do if for you. These notes will certainly save your time during stressful exam days.

- Revision Notes for class-11 Physics
- Revision Notes for class-11 Chemistry
- Revision Notes for class-11 Mathematics
- Revision Notes for class-11 Biology
- Revision Notes for class-11 Accountancy
- Revision Notes for class-11 Economics
- Revision Notes for class-11 Business Studies
- Revision Notes for class-11 Computer Science
- Revision Notes for class-11 Informatics Practices
- Revision Notes for class-11 Geography

To download Statistics class 11 Notes, sample paper for class 11 Chemistry, Physics, Biology, History, Political Science, Economics, Geography, Computer Science, Home Science, Accountancy, Business Studies and Home Science; do check myCBSEguide app or website. myCBSEguide provides sample papers with solution, test papers for chapter-wise practice, NCERT solutions, NCERT Exemplar solutions, quick revision notes for ready reference, CBSE guess papers and CBSE important question papers. Sample Paper all are made available through **the best app for CBSE students** and myCBSEguide website.

- Sets class 11 Notes Mathematics
- Relations And Functions class 11 Notes Mathematics
- Trigonometric Functions class 11 Notes Mathematics
- Principles Of Mathematical Induction class 11 Notes Mathematics
- Complex Numbers And Quadratic Equations class 11 Notes Mathematics
- Linear Inequalities class 11 Notes Mathematics
- Permutations And Combinations class 11 Notes Mathematics
- Binomial Theorem class 11 Notes Mathematics
- Sequences And Series class 11 Notes Mathematics
- Straight Lines class 11 Notes Mathematics
- Conic Sections class 11 Notes Mathematics
- Limits And Derivatives class 11 Notes Mathematics
- Mathematical Reasoning class 11 Notes Mathematics
- Statistics class 11 Notes Mathematics
- Probability class 11 Notes Mathematics

### Test Generator

Create question paper PDF and online tests with your own name & logo in minutes.

Create Now### myCBSEguide

Question Bank, Mock Tests, Exam Papers, NCERT Solutions, Sample Papers, Notes

Install Now