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

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#### Chapters

Chapter 1: Introduction

Chapter 2: Collection of Data

Chapter 3: Organisation of Data

Chapter 4: Presentation of Data

Chapter 5: Measures of Central Tendency

Chapter 6: Measures of Dispersion

Chapter 7: Correlation

Chapter 8: Index Numbers

Chapter 9: Use of Statistical Tools

## Chapter 2: Collection of Data

Exercise
Exercise [Pages 20 - 21]

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

Exercise | Q 1.1 | 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 1.2 | Page 20

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

How often do you use computers?

Exercise | Q 1.3 | 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 1.4 | Page 20

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

Rise in the price of petrol is justified.

Exercise | Q 1.5 | 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’).

Exercise | Q 3.1 | Page 20

State whether the following statement is True or False.

There are many sources of data

• True

• False

Exercise | Q 3.2 | Page 20

State whether the following statement is True or False.

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 3.3 | Page 20

State whether the following statement is True or False.

Data collected by an investigator is called the secondary data.

• True

• False

Exercise | Q 3.4 | Page 20

State whether the following statement is True or False.

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

• True

• False

Exercise | Q 3.5 | Page 20

State whether the following statement is True or False.

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

• True

• False

Exercise | Q 4.1 | 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 4.2 | 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 it be banned?

Exercise | Q 4.3 | 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 price of petrol?

Exercise | Q 4.4 | 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 fertilisers?
2. Do you use fertilisers 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.

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Exercise

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

NCERT solutions for Ncert Class 11 Economics - Statistics for Economics 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 Ncert Class 11 Economics - Statistics for Economics solutions in a manner that help students grasp basic concepts better and faster.

Further, we at Shaalaa.com provide such solutions so that students can prepare for written exams. NCERT textbook solutions can be a core help for self-study and acts as a perfect self-help guidance for students.

Concepts covered in Ncert Class 11 Economics - Statistics for Economics 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.

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.

Get the free view of chapter 2 Collection of Data Class 11 extra questions for Ncert Class 11 Economics - Statistics for Economics and can use Shaalaa.com to keep it handy for your exam preparation

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