NCERT Solutions for Class 11 Maths Chapter 15 Exercise 15.2

NCERT Solutions for Class 11 Maths Chapter 15 Ex 15.2: NCERT Solutions Class 11 Maths Chapter 15 Statistics has solutions for all exercise 15.2 questions. Subject matter experts in Embibe prepare NCERT solutions for Statistics Class 11 Mathematics. This article gives detailed solutions for Exercise 15.2 of Class 11 Maths.

Exercise 15.2 of Chapter 15 deals about Mean, Mean Deviation, Variance and Standard Deviation. Moreover, Embibe provides 500+ practice questions from 30+ books so that students can strengthen their basics. Besides that, they can also refer to important books like NCERT exemplars, Golden Mathematics etc., available in Embibe library.

NCERT Solutions for Class 11 Maths Chapter 15 Exercise 15.2: Important Topics

Statistics is an important chapter as it forms the basis for higher studies. Topics on Mean Deviation, Variance Deviation are discussed on the exercise. Referring to the solutions for Exercise 15.2 can help students to understand the step-wise procedure of solving numericals related to the topic.

Furthermore, students can refer to Embibe’s explainers and 3D videos to enhance their comprehension of the concepts. In addition, at the end of every topic students can find at least 100 practice questions to improve their problem solving skills. The table below highlights important topics covered in Chapter 15 of Class 11 Maths.

Exercise	Topics
15.1	Introduction
15.2	Measures of Dispersion
15.3	Range
15.4	Mean Deviation
15.4.1	Mean Deviation for Ungrouped Data
15.4.2	Mean Deviation for Grouped Data
15.4.3	Limitations of Mean Deviation
15.5	Variance and Standard Deviation
15.5.1	Standard Deviation
15.5.2	Standard Deviation of a Discrete Frequency Distribution
15.5.3	Standard Deviation of a Continuous Frequency Distribution
15.5.4	Shortcut method to find Variance and Standard Deviation
15.6	Analysis of Frequency Distributions
15.6.1	Comparison of two Frequency Distributions with same Mean

NCERT Solutions for Class 11 Maths Chapter 15 Exercise 15.2: Points to remember

While practising the questions will help students gain a lot of confidence in the examination, referring to important points ease the revision process. Find a list of important points for exercise 5.2 below.

Mean deviation is the arithmetic mean of the absolute values of deviations about some point.
Standard deviation is the positive square root of variance.
Variance is the arithmetic mean of the squares of deviation about mean.
The distribution having a greater coefficient of variation has more variability around the central value, than the distribution having a smaller value of coefficient of variation.

NCERT Solutions for Class 11 Maths: All Chapters

In order to ace the Class 11 Maths exam, students should be thorough with all the chapters. Below you can find the NCERT Solutions for all the chapters of Class 11 Maths.

1st Chapter: Sets
2nd Chapter: Relations and Functions
3rd Chapter: Trigonometric Functions
4th Chapter: Principle of Mathematical Induction
5th Chapter: Complex Numbers and Quadratic Equations
6th Chapter: Linear Inequalities
7th Chapter: Permutations and Combinations
8th Chapter: Binomial Theorem
9th Chapter: Sequences and Series
10th Chapter: Straight Lines
11th Chapter: Conic Sections
12th Chapter: Introduction to Three Dimensional Geometry
13th Chapter: Limits and Derivatives
14th Chapter: Mathematical Reasoning
15th Chapter: Statistics
16th Chapter: Probability