NCERT Solutions for Class 11 Statistics Chapter 2

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NCERT Solutions for Class 11 Statistics Chapter 2 - Collection of Data

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NCERT Solutions for Class 11 Statistics Chapter 2 is available on the official website of Vedantu.  They always focus on the student's understandability and provide all the material in three different languages. It is a digital learning process which is more effective for the students. It explains each topic with one or more examples and provides some solved questions and unsolved questions on that particular topic. NCERT Solutions for Class 11 Statistics Chapter 2 Collection of data helps the students to prepare for their examinations without relying on multiple books. If they are unable to understand or still they have any doubts, the lecturers will be available on the official website and clarify their doubts through live chat.

The NCERT Solutions for Class 11 Statistics Chapter 2 PDF will be uploaded soon.

FAQ (Frequently Asked Questions)

1. Do samples provide better results than surveys? Explain.

Ans. It is not a matter of comparison between the samples and the survey. Because both the methods are effective in providing primary data. The effectiveness of the survey depends on the number of people. Similarly, the effectiveness of a sample depends on the size of the sample. Also, it is important to verify whether it is a random sample or a nonrandom sample.

2. Explain various modes of collecting the data?

Ans. We have three major modes of collecting the data. Each has its advantages and disadvantages. They are-

  • Personal interviews are the interviews conducted face to face. It has a high response and can provide open-ended questions. The reliability is high compared to other methods.

  • Mailing questionnaires is sending a set of questions through emails. It doesn't disturb or consume the time of people. It also gives reliable answers without any inferiority or ambiguity. But we can't expect more people to answer.

  • Telephone interviews are the interviews done by telephone. It is very cheap and provides more reliability. But consumes a lot of time and many people may refuse unknown calls.