Class 11 Statistics for Economics – Chapter 1: Introduction

Chapter Overview

This chapter introduces the relationship between Economics and Statistics. It explains why economics is studied, the problem of scarcity, economic activities, and how statistics helps economists understand and solve economic problems.

1. Why Economics?

Economics is the study of how people use limited resources to satisfy unlimited wants.

Economic Activities

Activities performed for earning income are called economic activities.

Person	Economic Role
Buyer of goods	Consumer
Seller of goods	Seller
Maker of goods/services	Producer
Works for wages/salary	Employee
Gives employment	Employer

Key Point

Economic activities are undertaken for monetary gain.

Examples

Farmer growing crops
Shopkeeper selling goods
Teacher teaching in a school
Doctor providing medical services

2. Scarcity: The Basic Economic Problem

Human wants are unlimited, but resources are limited.

Meaning of Scarcity

Scarcity means the shortage of resources compared to human wants.

Examples of Scarcity

Limited pocket money
Long queues at railway stations
Crowded buses and trains
Shortage of water
Limited seats in colleges

Important Fact

Scarcity is the root cause of all economic problems.

If resources were unlimited, there would be no need for economics.

3. Alternative Uses of Resources

Resources can be used in different ways.

Examples

Land can be used for food crops or cotton.
Water can be used for agriculture or industries.
Labour can work in farming or manufacturing.

Because resources have alternative uses, people must make choices.

4. Choice and Decision Making

Since resources are limited, people must decide:

What to buy?
How much to buy?
What to produce?
How much to produce?

Example

A student has ₹500 and wants:

Books
Shoes
Mobile recharge

Since money is limited, the student must choose the most important needs.

5. Main Branches of Economics

Economics is generally divided into three parts:

A. Consumption

Consumption refers to the use of goods and services to satisfy wants.

Example

Eating food
Using a mobile phone
Wearing clothes

Study of Consumption

Economists study:

What consumers buy
Why they buy
How income and prices affect buying decisions

B. Production

Production means creating goods and services.

Example

Manufacturing cars
Growing wheat
Providing internet services

Study of Production

Economists study:

What to produce
How to produce
For whom to produce

C. Distribution

Distribution refers to sharing national income among different factors of production.

Forms of Income

Factor	Income
Labour	Wages
Land	Rent
Capital	Interest
Entrepreneur	Profit

6. Modern Economic Problems

Economics also studies major social and economic issues.

Examples

Poverty
Unemployment
Income inequality
Population growth
Natural disasters
Environmental problems

Economists require accurate information to understand and solve these problems.

7. Statistics in Economics

Statistics provides numerical information about economic activities.

Economic Data

Facts and figures related to economic activities are called economic data.

Examples

Income levels
Prices
Employment figures
Production data

Importance

Statistics helps economists:

Collect information
Analyze problems
Formulate policies
Predict future trends

8. What is Statistics?

Definition

Statistics is the science of collecting, organizing, presenting, analyzing, and interpreting numerical data.

Fields Using Statistics

Economics
Business
Finance
Psychology
Sociology
Science

9. Types of Data

A. Quantitative Data

Data expressed in numbers.

Examples

Income = ₹20,000
Population = 1 million
Marks = 85

Characteristics

Measurable
Numerical

B. Qualitative Data

Data describing qualities or characteristics.

Examples

Gender
Skill level
Health condition
Education status

Characteristics

Non-numerical
Descriptive

10. Functions of Statistics in Economics

1. Presents Facts Clearly

Statistics expresses information accurately.

Example

✔ 310 people died in an earthquake.

Instead of

✘ Hundreds of people died.

2. Simplifies Large Data

Statistics summarizes large amounts of data.

Example

Instead of remembering thousands of incomes, we use:

Average Income

3. Finds Relationships

Statistics helps discover relationships between variables.

Examples

Price and demand
Income and consumption
Investment and national income

4. Tests Economic Theories

Economists use statistics to check whether assumptions are correct.

Example

Does demand really decrease when price increases?

5. Predicts Future Trends

Statistics helps forecast future events.

Examples

Future population
Future production
Future demand

6. Helps in Policy Formulation

Government uses statistical information to make decisions.

Examples

Poverty reduction programs
Employment schemes
Education policies
Health policies

11. Statistics and Economic Policy

Statistics helps:

Identify economic problems.
Analyze their causes.
Develop suitable solutions.
Evaluate policy effectiveness.

Example

Government uses population statistics to check whether family planning programs are successful.

12. Limitations of Statistics

Important Principle

Statistics is not a substitute for common sense.

Statistics provides useful information, but wrong interpretation may lead to incorrect decisions.

Example

Using only average river depth to decide whether everyone can cross safely may be dangerous because some areas may be much deeper.

Key Terms

Term	Meaning
Economics	Study of allocation of scarce resources
Scarcity	Limited resources compared to unlimited wants
Consumer	Person who buys goods/services
Producer	Person who produces goods/services
Consumption	Use of goods and services
Production	Creation of goods and services
Distribution	Sharing of national income
Statistics	Science of collecting and analyzing data
Quantitative Data	Numerical information
Qualitative Data	Descriptive information
Economic Data	Information related to economic activities

A. Multiple Choice Questions (MCQs)

1. Economics is mainly the study of:

A) Plants
B) Animals
C) Man in ordinary business of life
D) Machines

✅ Answer: C) Man in ordinary business of life

2. A person who buys goods for satisfying needs is called:

A) Producer
B) Consumer
C) Employer
D) Seller

✅ Answer: B) Consumer

3. A person who manufactures goods is called:

A) Consumer
B) Employee
C) Producer
D) Trader

✅ Answer: C) Producer

4. Economic activities are undertaken for:

A) Entertainment
B) Charity
C) Monetary gain
D) Recreation

✅ Answer: C) Monetary gain

5. The root cause of all economic problems is:

A) Poverty
B) Population
C) Scarcity
D) Education

✅ Answer: C) Scarcity

6. Human wants are:

A) Limited
B) Fixed
C) Unlimited
D) Equal

✅ Answer: C) Unlimited

7. Resources are:

A) Unlimited
B) Limited
C) Infinite
D) Free

✅ Answer: B) Limited

8. Resources have:

A) Single use
B) No use
C) Alternative uses
D) Unlimited uses

✅ Answer: C) Alternative uses

9. Study of purchasing goods and services is called:

A) Production
B) Distribution
C) Consumption
D) Investment

✅ Answer: C) Consumption

10. Study of creating goods and services is called:

A) Production
B) Consumption
C) Exchange
D) Saving

✅ Answer: A) Production

11. Distribution deals with:

A) Sharing national income
B) Manufacturing goods
C) Buying goods
D) Advertising products

✅ Answer: A) Sharing national income

12. GDP stands for:

A) Gross Domestic Product
B) General Domestic Product
C) Gross Development Product
D) General Development Plan

✅ Answer: A) Gross Domestic Product

13. Statistics is a branch of:

A) History
B) Mathematics
C) Geography
D) Literature

✅ Answer: B) Mathematics

14. Statistics deals with:

A) Collection of data only
B) Analysis of data only
C) Interpretation only
D) Collection, analysis and interpretation of data

✅ Answer: D) Collection, analysis and interpretation of data

15. Which is quantitative data?

A) Gender
B) Skill level
C) Income
D) Health condition

✅ Answer: C) Income

16. Which is qualitative data?

A) Marks
B) Population
C) Production
D) Gender

✅ Answer: D) Gender

17. Statistics helps economists:

A) Understand economic problems
B) Predict future trends
C) Formulate policies
D) All of these

✅ Answer: D) All of these

18. Average income is an example of:

A) Summary measure
B) Qualitative data
C) Policy
D) Scarcity

✅ Answer: A) Summary measure

19. Statistics helps in:

A) Prediction
B) Planning
C) Decision making
D) All of these

✅ Answer: D) All of these

20. Statistics cannot replace:

A) Data
B) Economics
C) Common sense
D) Production

✅ Answer: C) Common sense

B. Fill in the Blanks

Economics studies the use of ______ resources.
- ✅ scarce
Human wants are ______.
- ✅ unlimited
Scarcity is the root of all ______ problems.
- ✅ economic
A person who buys goods is called a ______.
- ✅ consumer
A person who produces goods is called a ______.
- ✅ producer
Economic activities are performed for ______ gain.
- ✅ monetary
Resources have ______ uses.
- ✅ alternative
The study of buying goods is called ______.
- ✅ consumption
The study of producing goods is called ______.
- ✅ production
National income is shared through the process of ______.

✅ distribution

GDP stands for Gross ______ Product.

✅ Domestic

Statistics is a branch of ______.

✅ mathematics

Statistics helps in collection, analysis and ______ of data.

✅ interpretation

Income is an example of ______ data.

✅ quantitative

Gender is an example of ______ data.

✅ qualitative

Statistics helps economists formulate ______.

✅ policies

Statistics helps in predicting future ______.

✅ trends

Economic facts are also called economic ______.

✅ data

Exact facts are more ______ than vague statements.

✅ convincing

Statistics is no substitute for common ______.

✅ sense

C. True or False

Statistics deals only with qualitative data.
- ✅ False
Human wants are unlimited.
- ✅ True
Resources are unlimited.
- ✅ False
Scarcity causes economic problems.
- ✅ True
Statistics helps in policy formulation.
- ✅ True
Income is qualitative data.
- ✅ False
Gender is qualitative data.
- ✅ True
Production means creation of goods and services.
- ✅ True
Statistics can predict future trends.
- ✅ True
Statistics can replace common sense.

✅ False

GDP means Gross Domestic Product.

✅ True

Economics studies economic activities.

✅ True

A farmer is a producer.

✅ True

A consumer produces goods.

✅ False

Statistics helps in decision making.

✅ True

D. Match the Following

Column A	Column B
Consumer	Buys goods
Producer	Produces goods
Employee	Works for wages
Employer	Gives employment
Consumption	Use of goods
Production	Creation of goods
Distribution	Sharing income
Scarcity	Limited resources
Statistics	Study of data
GDP	National output

Answers

1 → Buys goods
2 → Produces goods
3 → Works for wages
4 → Gives employment
5 → Use of goods
6 → Creation of goods
7 → Sharing income
8 → Limited resources
9 → Study of data
10 → National output

E. One Word Answer Questions

Root of all economic problems?
- ✅ Scarcity
Buyer of goods?
- ✅ Consumer
Maker of goods?
- ✅ Producer
Sharing of national income?
- ✅ Distribution
Numerical information?
- ✅ Statistics
Data in numbers?
- ✅ Quantitative data
Non-numerical data?
- ✅ Qualitative data
Income earned by labour?
- ✅ Wages
Income earned by capital?
- ✅ Interest
Income earned by entrepreneur?

✅ Profit

F. Very Short Answer Questions

1. What is Economics?

✅ Economics is the study of how scarce resources are used to satisfy unlimited wants.

2. What is scarcity?

✅ Scarcity means limited resources compared to unlimited wants.

3. What is consumption?

✅ Consumption is the use of goods and services to satisfy wants.

4. What is production?

✅ Production is the creation of goods and services.

5. What is distribution?

✅ Distribution is the sharing of national income among factors of production.

6. What is Statistics?

✅ Statistics is the science of collecting, presenting, analyzing and interpreting data.

7. What is quantitative data?

✅ Data expressed in numerical form.

8. What is qualitative data?

✅ Data describing qualities or characteristics.

G. Important Assertion-Reason Questions

1.

Assertion (A): Human wants are unlimited.
Reason (R): Resources are limited.

✅ Answer: Both A and R are true and R correctly explains A.

2.

Assertion (A): Scarcity creates economic problems.
Reason (R): Resources have alternative uses.

✅ Answer: Both A and R are true.

3.

Assertion (A): Statistics helps in policy making.
Reason (R): Statistics provides economic data.

✅ Answer: Both A and R are true and R correctly explains A.

H. HOTS Questions

1. Why is scarcity called the basic economic problem?

✅ Because human wants are unlimited while resources are limited.

2. Why do economists need statistics?

✅ To collect, analyze and interpret economic data for decision making.

3. Why can’t statistics replace common sense?

✅ Because wrong interpretation of statistical data may lead to incorrect decisions.

Important Exam Questions (Most Expected)

Define Economics.
Explain scarcity.
What are economic activities?
Differentiate between quantitative and qualitative data.
Explain consumption, production and distribution.
Define Statistics.
Explain the role of Statistics in Economics.
Why is Statistics important for policy making?
Explain the relationship between Economics and Statistics.
“Statistics is no substitute for common sense.” Explain.