# NCERT solutions for Economics - Statistics for Economics Class 11 chapter 2 - Collection of Data [Latest edition]

#### Chapters ## Chapter 2: Collection of Data

Exercise
Exercise [Pages 20 - 21]

### NCERT solutions for Economics - Statistics for Economics Class 11 Chapter 2 Collection of DataExercise [Pages 20 - 21]

Exercise | Q 1. (i) | Page 20

Frame at least four appropriate multiple-choice options for following question:

Which of the following is the most important when you buy a new dress?

Exercise | Q 1. (ii) | Page 20

Frame at least four appropriate multiple-choice options for the following question:

How often do you use computers?

Exercise | Q 1. (iii) | Page 20

Frame at least four appropriate multiple-choice options for the following question:

Which of the following newspapers do you read regularly?

Exercise | Q 1. (iv) | Page 20

Frame at least four appropriate multiple-choice options for the following question:

Rise in the price of petrol is justified.

Exercise | Q 1. (v) | Page 20

Frame at least four appropriate multiple-choice options for the following question:

What is the monthly income of your family?

Exercise | Q 2. | Page 20

Frame five two-way questions (with ‘Yes’ or ‘No’).

#### State whether the following statements are True or False.

Exercise | Q 3. (i) | Page 20

There are many sources of data.

• True

• False

Exercise | Q 3. (ii) | Page 20

A telephone survey is the most suitable method of collecting data when the population is literate and spread over a large area.

• True

• False

Exercise | Q 3. (iii) | Page 20

Data collected by an investigator is called secondary data.

• True

• False

Exercise | Q 3. (iv) | Page 20

There is a certain bias involved in the non-random selection of samples.

• True

• False

Exercise | Q 3. (v) | Page 20

Non-sampling errors can be minimized by taking large samples.

• True

• False

Exercise | Q 4. (i) | Page 20

What do you think about the following question? Do you find any problem with this question? Describe.

How far do you live from the closest market?

Exercise | Q 4. (ii) | Page 20

What do you think about the following question? Do you find any problem with this question? Describe.

If plastic bags are only 5 percent of our garbage, should they be banned?

Exercise | Q 4. (iii) | Page 20

What do you think about the following question? Do you find any problem with this question? Describe.

Wouldn’t you be opposed to an increase in the price of petrol?

Exercise | Q 4. (iv) | Page 20

What do you think about the following questions? Do you find any problem with these questions? Describe.

1. Do you agree with the use of chemical fertilizers?
2. Do you use fertilizers in your fields?
3. What is the yield per hectare in your field?
Exercise | Q 5. | Page 21

You want to do research on the popularity of Vegetable Atta Noodles among children. Design a suitable questionnaire for collecting this information.

Exercise | Q 6. | Page 21

In a village of 200 farms, a study was conducted to find the cropping pattern. Out of the 50 farms surveyed, 50% grew only wheat. What is the population and the sample size?

Exercise | Q 7. | Page 21

Give two examples each of sample, population and variable.

Exercise | Q 8. | Page 21

Which of the following methods give better results and why?

• Census

• Sample

Exercise | Q 9. | Page 21

Which of the following errors is more serious and why?

• Sampling error

• Non-Sampling error

Exercise | Q 10. | Page 21

Suppose there are 10 students in your class. You want to select three out of them. How many samples are possible?

Exercise | Q 11. | Page 21

Discuss how you would use the lottery method to select 3 students out of 10 in your class?

Exercise | Q 12. | Page 21

Does the lottery method always give you a random sample? Explain.

Exercise | Q 13. | Page 21

Explain the procedure of selecting a random sample of 3 students out of 10 in your class, by using random number tables.

Exercise | Q 14. | Page 21

Do samples provide better results than surveys? Give reasons for your answer.

## Chapter 2: Collection of Data

Exercise ## NCERT solutions for Economics - Statistics for Economics Class 11 chapter 2 - Collection of Data

NCERT solutions for Economics - Statistics for Economics Class 11 chapter 2 (Collection of Data) include all questions with solution and detail explanation. This will clear students doubts about any question and improve application skills while preparing for board exams. The detailed, step-by-step solutions will help you understand the concepts better and clear your confusions, if any. Shaalaa.com has the CBSE Economics - Statistics for Economics Class 11 solutions in a manner that help students grasp basic concepts better and faster.

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Concepts covered in Economics - Statistics for Economics Class 11 chapter 2 Collection of Data are Collection of Data, Sources of Data - Primary, Sources of Data - Secondary, Concepts of Sampling, How Basic Data is Collected, Methods of Collecting Data, Some Important Sources of Secondary Data, Organisation of Data, Meaning of Variables, Types of Variables, Organisation of Data - Raw Data, Organisation of Data - Frequency Series, Organisation of Data - Frequency Distribution, Tabular Presentation and Diagrammatic Presentation of Data - Geometric Form, Tabular Presentation and Diagrammatic Presentation of Data - Frequency Diagrams, Abular Presentation and Diagrammatic Presentation of Data - Arithmetic Line Graphs, Introduction to Collection of Data, What Are the Sources of Data?, How Do We Collect the Data?, Census and Sample Surveys, Sampling and Non-sampling Errors, Census of India and NSSO, Collection of Data - Conclusion.

Using NCERT Class 11 solutions Collection of Data exercise by students are an easy way to prepare for the exams, as they involve solutions arranged chapter-wise also page wise. The questions involved in NCERT Solutions are important questions that can be asked in the final exam. Maximum students of CBSE Class 11 prefer NCERT Textbook Solutions to score more in exam.

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