Statistics for Economics Chapter 1: Exercise Solutions & Exam Tips

You have now covered the full sweep of Chapter 1 — why economics matters, scarcity and choice, consumption, production, and distribution, and the role of Statistics. This final post ties it together: a crisp recap, a look at the textbook’s memorable river-crossing story, guidance on the NCERT exercises, and a checklist before your exam.

Chapter 1 Recap: Key Concepts to Remember

Before attempting the exercises, it helps to have the chapter’s core ideas fresh in your mind:

• Economics studies “the ordinary business of life” — everyday activities of consumers, sellers, producers, employees, and employers.

• Wants are unlimited, resources are limited and have alternative uses — this mismatch, scarcity, is the root of all economic problems.

• Economics is conventionally divided into consumption (what consumers buy), production (what producers make), and distribution (how income is shared as wages, profits, and interest).

• Modern economics also studies poverty, unemployment, and income disparity using detailed economic data.

• Statistics — the collection, presentation, analysis, and interpretation of numerical data — is essential because no economic problem can be solved without reliable facts.

• Data can be quantitative (measurable in numbers) or qualitative (attributes that can’t be measured exactly, but can be ranked in degrees).

• Statistics helps condense large datasets, uncover relationships between factors, predict future trends, and design and evaluate policies.

The River-Crossing Story: Why Statistics Is No Substitute for Common Sense

One of the most memorable parts of the chapter is a cautionary story about a family that tried to cross a river. Knowing the river’s average depth, the father calculated his family’s average height and, seeing that it exceeded the river’s average depth, assumed it would be safe to cross. Tragically, this reasoning failed — because an average hides variation. Some family members were shorter than the deepest parts of the river, even though the average height was greater than the average depth.

This story is often asked about directly in exams, and the key insight to remember is this: the fault lies not with the statistical method of calculating averages, but with how the average was applied and interpreted. An average is a useful summary, but it does not tell you about the range or spread of the underlying values. Blindly trusting a single number without applying judgement can lead to serious, even dangerous, mistakes. The takeaway the textbook wants you to carry forward is that statistical methods are powerful tools, but they can never fully replace common sense and careful interpretation.

How to Approach the NCERT Exercises

Chapter 1’s exercises test whether you can apply the concepts above rather than simply recall definitions.

True or false statements about Statistics. Check each statement against the exact scope of the subject — Statistics deals with both quantitative and qualitative data, not quantitative data alone, and cannot solve an economic problem on its own without accompanying data and sound judgement.

Listing and classifying economic activities. For lists drawn from a bus stand, market, or your own household, check each activity for monetary gain. Buying tickets, selling goods, or paying wages count as economic; chatting with a friend while waiting does not.

Illustrating how the government uses statistical data. Pick two concrete examples — such as using employment data to design a job-creation scheme, or price data to decide on subsidies — and briefly explain how data informed each decision.

Explaining unlimited wants and limited resources. Use two examples from your own life (one personal, one shared or family-related) to show how a fixed budget forces a choice between competing wants.

Explaining how you would choose which wants to satisfy, and your reasons for studying Economics. Tie both answers to prioritising the most urgent wants under a limited income, and to how economics explains decisions you already make daily — from pocket money to reading the news.

Commenting on “Statistical methods are no substitute for common sense.” Use the river-crossing story as your central example, plus one of your own — such as trusting an average exam score without checking how spread out the marks actually were.

Common Mistakes Students Make in This Chapter

Even in a conceptual chapter, students lose marks in predictable ways: confusing production (making goods) with distribution (sharing the income earned); treating every activity as “economic” without checking for monetary gain; describing Statistics as dealing only with numbers, forgetting qualitative data; and explaining the river-crossing story vaguely instead of stating that the fault lay in misusing the average, not the method itself.

Quick Revision Checklist Before Your Exam

• Can you define consumer, seller, producer, employee, and employer with one example each?

• Can you explain why scarcity is the root of all economic problems?

• Can you state the three divisions of economics with one example of each?

• Can you explain quantitative vs qualitative data with fresh examples?

• Can you explain why the river-crossing story shows statistics is no substitute for common sense?

• Can you list two ways Statistics supports economic policymaking?

Related Reading on ChampionsPrep

• Why Study Economics? Meaning and Basic Concepts for Class 11 Students

• Scarcity and the Problem of Choice in Economics (Class 11)

• Consumption, Production and Distribution — The Three Pillars of Economics

• Role and Importance of Statistics in Economics (Class 11)

Start Learning Smarter with ChampionsPrep

Revision is where most marks are won or lost. ChampionsPrep’s AI-powered question banks let you practise exercise-style questions from every NCERT chapter, with instant, exam-ready explanations tailored to CBSE and Maharashtra Board Class 11–12 Commerce students. Registration is free, and you only pay-as-you-use — no subscriptions required. Revise Chapter 1 on ChampionsPrep and walk into your exam fully prepared.

Test Your Knowledge

Q1.Who is defined as a consumer in basic economic terminology?

An individual who manufactures finished products for commercial resaleA merchant who transports agricultural produce across state bordersA government official who collects municipal taxesAn economic agent who buys goods and services for the direct satisfaction of wants

Q2.The fundamental root cause behind all economic problems faced by societies is:

Scarcity of resources in relation to unlimited human wants with alternative usesExcessive accumulation of foreign exchange reserves in central banksRapid automation reducing production costs across industriesSurplus production of consumer goods leading to deflation

Q3.Which of the following is an economic activity?

A mother cooking breakfast for her children at homeA doctor treating patients in a private clinic for a consultation feeA volunteer cleaning a public beach on Sunday morningA student watching an educational documentary for personal leisure