NCERT Class 11 Informative Practices Understanding Data

Read and download NCERT Class 11 Informative Practices Understanding Data in NCERT book for Class 11 Informatics Practices. You can download latest NCERT eBooks chapter wise in PDF format free from Studiestoday.com. This Informatics Practices textbook for Class 11 is designed by NCERT and is very useful for students. Please also refer to the NCERT solutions for Class 11 Informatics Practices to understand the answers of the exercise questions given at the end of this chapter

NCERT Book for Class 11 Informatics Practices Chapter 5 Understanding Data

Class 11 Informatics Practices students should refer to the following NCERT Book Chapter 5 Understanding Data in Class 11. This NCERT Book for Class 11 Informatics Practices will be very useful for exams and help you to score good marks

Chapter 5 Understanding Data NCERT Book Class 11

5.1 Introduction To Data

Many a time, people take decisions based on certain data or information. For example, while choosing a college for getting admission, one looks at placement data of previous years of that college, educational qualification and experience of the faculty members, laboratory and hostelfacilities, fees, etc. So we can say that identification of a college is based on various data and their analysis. Governments systematically collect and record data about the population through a process called census. Census data contains valuable information which are helpful is planning and formulating policies. Likewise, the coaching staff of a sports team analyses previous performances of opponent teams for making strategies. Banks maintain data about the customers, their account details and transactions. All these examples highlight the need of data in various fields. Data are indeed crucial for decision making.

In the previous examples, one cannot make decisions by looking at the data itself. In our example of choosing a college, suppose the placement cell of the college has maintained data of about 2000 students placed with different companies at different salary packages in the last 3 years. Looking at such data, one cannot make any remark about the placement of students of that college. The college processes and analyses this data and the results are given in the placement brochure of the college through summarisation as well as visuals for easy understanding. Hence, data need to be gathered, processed and analysed for making decisions.
In general, data is a collection of characters, numbers, and other symbols that represents values of some situations or variables. Data is plural and singular of the word data is “datum”. Using computers, data are stored in electronic forms because data processing becomes faster and easier as compared to manual data processing done by people. The Information and Communication Technology (ICT) revolution led by computer, mobile and Internet has resulted in generation of large volume of data and at a very fast pace. The following list contains some examples of data that we often come across.
• Name, age, gender, contact details, etc., of a person
• Transactions data generated through banking, ticketing, shopping, etc. whether online or offline
• Images, graphics, animations, audio, video
• Documents and web pages
• Online posts, comments and messages
• Signals generated by sensors
• Satellite data including meteorological data, communication data, earth observation data, etc.



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NCERT Book Class 11 Informatics Practices Chapter 5 Understanding Data

The above NCERT Books for Class 11 Informatics Practices Chapter 5 Understanding Data have been published by NCERT for latest academic session. The textbook by NCERT for Chapter 5 Understanding Data Informatics Practices Class 11 is being used by various schools and almost all education boards in India. Teachers have always recommended students to refer to Chapter 5 Understanding Data NCERT etextbooks as the exams for Class 11 Informatics Practices are always asked as per the syllabus defined in these ebooks. These Class 11 Chapter 5 Understanding Data book for Informatics Practices also includes collection of question. Along with Informatics Practices Class 11 NCERT Book in Pdf for Chapter 5 Understanding Data we have provided all NCERT Books in English Medium for Class 11 which will be really helpful for students who have opted for english language as a medium. Class 11 students will need their books in English so we have provided them here for all subjects in Class 11.

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