NCERT Book Class 11 Statistics PDF

An Introduction to NCERT Statistics Book Class 11

A subject like statistics requires special attention and a systematic approach to comprehend the concepts well. Along with that, making the basics clear is equally essential. Only then students can score well in their board exams. NCERT books for Class 11 Economics Statistics thus aims at extending adequate guidance to students so that practising with the book alone can benefit them comprehensively.

Class 11 Statistics NCERT books strictly adhere to the CBSE syllabus. It makes sure that students do not need to prepare with multiple study books for a syllabus-oriented lesson. Therefore, you can download NCERT books for Class 11 Statistics PDF to get an at-length grasp of the syllabus.

Chapter-Wise Summary of Class 11 NCERT Statistics

Chapter 1: Introduction

The opening chapter of Statistics for Economics Class 11 NCERT book focuses on the several vital components of economics. Then, it proceeds to the definition of statistics and what it comprises for a general understanding of the subject’s scope. Based on the meaning of statistics by Bowley, this chapter presents the significant features of statistics in a plural sense.

This chapter also gives an account of statistics in its singular scope, as mentioned by Seligman. Students also get to know about the significance of statistics in economics. The chapter ends with the limitation of the subject.

An exercise after the chapter also contains some questions that students can answer to test their grasp of knowledge.

Chapter 2: Collection of Data 

Moving on to the next chapter of NCERT book for Class 11 Economics Statistics, students get to learn about the two sources and types of data. They are primary and secondary data, and the difference between them is also established in this chapter itself.

This chapter also gives a detailed account of the statistical methods used for data collection. Following are those methods.

• Direct personal investigation

• Indirect oral investigation

• Information from correspondents or local sources

• Information gathered through schedules and questionnaires

• Census

• Sample 

Apart from that, this chapter also sheds light on several methods through which samples are collected and their reliability. 

Chapter 3: Organisation of Data

The third chapter of NCERT Statistics book Class 11 deals with a significant concept of statistics, i.e., classification. Starting from the objective to characteristics of good classification, this chapter covers it all.

Students also learn about the different types of statistical series from this chapter. They primarily include - 

• Individual series 

• Frequency series

Frequency distribution is a critical part of this subject that is discussed in this chapter in great details. It also contains an exercise with the questions that may possibly come in the examination. Hence, solving these problems over and over again, students will be able to answer any kind of questions in the exam hall.

Chapter 4: Presentation of Data 

There are several modes of presentation of data in statistics, and they are incorporated in this chapter of NCERT books for Class 11 Economics Statistics. Following are the different types.

• Textual

• Tabular

• Diagrammatic

Each of these types also has some distinct characteristics that are highlighted in this chapter. Students become aware of the use of graph in statistics and different types of it from this chapter easily.

Nonetheless, one just cannot draw a graph as he/she has to abide by some particular rules. Following the rules, one can get the desirable and correct quantitative data. Finally, the chapter concludes by stating the merits of graphical representation of data and its limitation.

Chapter 5: Measures of Central Tendency

Central tendency measurements deal with the central value of a statistical series. This chapter primarily focuses on the several aspects of statistical measurements. From this chapter of NCERT books for Class 11 Economics Statistics, students of economics can develop an understanding of how to calculate the arithmetic mean step by step. Following this book, students can easily learn the tricks and methods to calculate several statistical data. For example, usages of Median, Percentile, Quartiles, and Mode can often become complicated and troublesome.

However, the NCERT books have made understanding all these aspects student-friendly so that they can learn the concepts quickly without wasting much time. Moreover, solving the exercise at the end, you can make your concept clear at once.

Chapter 6: Measures of Dispersion

Dispersion is a crucial term in Statistics that measures the variation of a data. This chapter of NCERT books for Class 11 Economics Statistics primarily highlights the various aspects of dispersion. Students will get to know about the different ways to measure dispersion. Following are some of them -  

• Range

• Mean deviation

• Quartile deviation

• Standard deviation

All of these topics are discussed in minute details in this chapter. Often, these calculations seem incoherent and critical to students, and eventually, they lose interest in these vital concepts.

However, consulting this book, they can easily interpret the process of these methods and their appropriate usage that will bring the most accurate result possible. 

Chapter 7: Correlation

Correlation refers to a method that determines the quantitative relationship between two different variables, such as demand and price. It is primarily of two types.

• Positive correlation

• Negative correlation

Along with that, learners will also develop their knowledge about the degree of correlation from this chapter. Additionally, there are different methods that aid in estimating correlation. Karl Pearson’s theory on the coefficient of correlation also forms a vital constituent of this chapter in the NCERT book for Class 11 Economics Statistics.

Moreover, this method also follows some specific rules, for instance, short-cut and step deviation methods, to derive the final output. This book makes all these concepts lucid and simplified with examples and in-depth analysis of the theory.

Chapter 8: Index Numbers

Another pivotal statistical device is the index number, which students need to learn to get a firm grip on the subject. If you are a board exam aspirant or preparing for any other national entrance test, gaining a sound understanding of this topic is mandatory. Only then you will be able to tackle any kind of question to be asked in the examination. 

Download NCERT books for Class 11 Economics Statistics for a simplified approach to concepts like the construction of index numbers and other allied topics. For example, index numbers are of different types, like simple and weighted index numbers, and hence, their construction methods will be altered accordingly. Reading this chapter, you can differentiate between the two without much hassle.

Chapter 9: Use of Statistical Tools

The concluding chapter of NCERT books for Class 11 Economics Statistics furnishes all the data types that one requires to conduct a statistical operation. The previous chapters dealt with several fundamental concepts of statistics. However, this chapter solely concentrates on the real-life application of those concepts.

For that, Some Step-by-Step Methodologies are Followed. They Include -  

• Introduction

• Identifying a particular area of study

• Target group

• Data collection

• Presentation of data in an organised way

• Analysis 

• Conclusion

• Submission of project

On successful completion of sequential steps, students can come up with an accurate statistical result.

Since this book provides considerable illustrative examples, students can learn the concepts readily without making any mistakes.

Why are NCERT Books Essential for CBSE Board Exam Preparation?

The market is flooded with several books for Class 11 Statistics. Still, NCERT books often come on the top list for students. What do you think can be the reason for that? To understand that, consider the following few aspects.

Let’s Take a Look!

• In-depth Analysis - Each NCERT book, irrespective of the subject, provides a detailed analysis of every topic so that students can gain a clear idea of the basics. Developing a strong base in any subject helps students excel in the examination and score well. Mere cramming of the concepts almost always does not work for subjects. Therefore, NCERT always thrives on imparting a quality lesson to students so that they can nurture themselves for the subject beyond just scoring in examinations.

• Detailed Exercise for Practice - The exercises after each chapter of the NCERT book for Class 11 Economics Statistics allow the students to get a fair idea of what types of questions they can expect in their board examination. These exercises are curated in such a way that testifies not only the comprehensive idea of the subject but also the conceptual understanding of respective chapters. Moreover, almost 95% of questions in CBSE board exams come from these textbooks. Hence, solving these exercises will let the students answer promptly.

• Student-Friendly Examples - Another characteristic of NCERT books is that they contain simplified diagrams and examples from real life. It helps students relate their classroom lessons to that in the outer environment. Since each topic contains several examples; students do not need to rote the lesson. Instead, they can memorise the concepts even better for proper answering during their exam. Due to this reason, teachers also refer to these books for their classroom lessons.

• Easy Availability - A valid reason behind the popularity of NCERT books is its ready availability. These books are available both online and offline. Students who are not comfortable with online books can purchase the physical copy of them from any reputed book store. On the other hand, students who want to save some on such purchases can download the NCERT books in PDF format and continue with their curricular preparation according to their convenience.

After assessing these factors, it would be easy to understand their increasing popularity. Hence, download NCERT books for Class 11 Economics Statistics today and start preparing for a comprehensive learning and exam preparation.

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Hence, if you are struggling with subjects like Statistics, don’t get stressed. Download NCERT books for Class 11 Economics Statistics and start preparing for the upcoming exams. Also, you can join our online session to clear your doubts if any. 

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