Use of Statistical Tools | Class 11 Economics Notes
By ConceptScroll Team · Published on 17 July 2026 · 2 min read
Use of Statistical Tools – this guide gives you a concise, exam-ready overview of Use of Statistical Tools from Class 11 Economics, written by ConceptScroll editors and reviewed against the latest NCERT textbook.
TABLE OF TWO-DIGIT RANDOM NUMBERS
This appendix provides a table of two-digit random numbers used in statistical sampling and data collection. Random numbers are essential in random sampling methods to ensure unbiased selection of samples from a population. The table lists sequences of two-digit numbers arranged in rows and columns, which can be used to select sample units systematically. Using random numbers helps in avoiding sampling bias and ensures that every individual in the population has an equal chance of being selected. This table is a practical tool for students and researchers conducting sample surveys as part of their projects. It supports the application of statistical methods by facilitating random sampling, which is a fundamental concept in statistics.
📊 Diagram: The table consists of rows and columns filled with two-digit numbers, arranged for easy reference during sampling.
🧪 Activity: Students practice selecting samples using the random number table for their projects.
🔗 Connection: Complements the glossary and project methodology sections by providing practical sampling tools.
Frequently asked questions
Which of the following is the first step in designing a statistical project according to the chapter 'Use of Statistical Tools'?
Identifying a problem or an area of study
What is the importance of choosing an appropriate target group in a statistical project?
Choosing an appropriate target group is important because it helps in framing relevant questions for the questionnaire. For example, if the project is about cars, the target group would be middle and higher income groups. This ensures that the data collected is relevant and useful for the study.
Which of the following methods is NOT a primary method of data collection?
Using data from government reports
Explain the difference between primary and secondary data with an example related to economic studies.
Primary data is first-hand data collected directly by the researcher, for example, conducting a survey on consumer preferences for toothpaste. Secondary data is data collected by someone else, such as using government census reports or research papers for studying literacy rates.
Ready to ace this chapter?
Get the full Use of Statistical Tools chapter — interactive notes, diagrams, worked solutions, polls and a free practice quiz — in the ConceptScroll app.
Study smarter with ConceptScroll
Daily NCERT-aligned reels, AI doubt solving and chapter quizzes — all free.
Start learning freeContinue reading
- Use of Statistical Tools | Class 11 Economics Notes
Clear NCERT-aligned notes on Use of Statistical Tools for Class 11 Economics.
- Use of Statistical Tools | Class 11 Economics Notes
Clear NCERT-aligned notes on Use of Statistical Tools for Class 11 Economics.
- Index Numbers | Class 11 Economics Notes
Clear NCERT-aligned notes on Index Numbers for Class 11 Economics.