Statistics Chapter 14 Class 9 Maths NCERT Textbook With Solutions PDF

NCERT Solutions for Class 9 Maths Chapter 14‘ PDF Quick download link is given at the bottom of this article. You can see the PDF demo, size of the PDF, page numbers, and direct download Free PDF of ‘Ncert Class 9 Maths Chapter 14 Exercise Solution’ using the download button.

NCERT Class 9 Maths Textbook Chapter 14 With Answer Book PDF Free Download

Statistics Chapter 14 Class 9 Maths NCERT

Chapter 14: Statistics

14.1 Introduction

Every day we come across a lot of information in the form of facts, numerical figures, tables, graphs, etc.

These are provided by newspapers, televisions, magazines, and other means of communication.

These may relate to cricket batting or bowling averages, profits of a company, temperatures of cities, expenditures in various sectors of a five-year plan, polling results, and so on.

These facts or figures, which are numerical or otherwise, collected with a definite purpose are called data.

Data is the plural form of the Latin word datum. Of course, the word ‘data’ is not new to you. You have studied data and data handling in earlier classes.

Our world is becoming more and more information-oriented. Every part of our lives utilizes data in one form or the other.

So, it becomes essential for us to know how to extract meaningful information from such data. This extraction of meaningful information is studied in a branch of mathematics called Statistics.

The word ‘statistics’ appears to have been derived from the Latin word ‘status’ meaning ‘a (political) state’.

In its origin, statistics was simply the collection of data on different aspects of the life of people, useful to the State.

Over period of time, however, its scope broadened and statistics began to concern itself not only with the collection and presentation of data but also with the interpretation and drawing of inferences from the data.

Statistics deals with the collection, organization, analysis, and interpretation of data. The word ‘statistics’ has different meanings in different contexts.

Language English
No. of Pages33
PDF Size236 KB

NCERT Solutions Class 9 Maths Chapter 14 Statistics

1. Give five examples of data that you can collect from your day-to-day life.


Five examples from day-to-day life:

  1. The number of students in our class.
  2. The number of fans in our school.
  3. Electricity bills of our house for last two years.
  4. Election results were obtained from television or newspapers.
  5. Literacy rate figures obtained from Educational Survey

2. Classify the data in Q.1 above as primary or secondary data.


Primary data: when the information was collected by the investigator herself or himself with a definite objective in her or his mind, the data obtained is called primary data.

Primary data; (i), (ii) and (iii)

Secondary data; when the information was gathered from a source that already had the information stored, the data obtained is called secondary data

Secondary data; (iv) and (v)

NCERT Class 9 Maths Textbook Chapter 14 With Answer Book PDF Free Download

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