Class 11 Economics Important Chapter 13 Collection of Data

Class 11 Economics Important Chapter 13 Collection of Data Solutions English Medium As Per AHSEC New Syllabus to each chapter is provided in the list so that you can easily browse through different chapters ASSEB Class 11 Economics Important Solutions and select need one. AHSEC Class 11 Economics Additional Notes English Medium Download PDF. HS 1st Year Economics Important Solutions in English.

Class 11 Economics Important Chapter 13 Collection of Data

Also, you can read the NCERT book online in these sections Solutions by Expert Teachers as per Central Board of Secondary Education (CBSE) Book guidelines. Assam AHSEC Board Class 11 Economics Additional Question Answer are part of All Subject Solutions. Here we have given HS 1st Year Economics Important Notes in English for All Chapters, You can practice these here.

Collection of Data

Chapter: 13

PART – B : STATISTICS FOR ECONOMICS

IMPORTANT QUESTION AND ANSWER

Short Type Question and Answer:

1. What is meant by a statistical error?

Ans: It is the difference between the actual value and the estimated value in a statistical investigation.

2. Does a statistical error always mean a mistake?

Ans: No, a statistical error is not necessarily a mistake; it can occur naturally due to estimation.

3. Which type of error occurs due to bias or prejudice of the selector?

Ans: Biased error.

4. What is another name for biased errors?

Ans: Cumulative errors or non-compensating errors.

5. How do unbiased errors arise?

Ans: They occur accidentally without bias, due to chance differences between selected and unselected units.

6. What is another name for unbiased errors?

Ans: Random sampling errors.

7. How can sampling errors be reduced?

Ans: By removing bias from the sample and increasing the sample size.

8. What happens to sampling errors as the sample size increases?

Ans: They usually decrease.

9. Which type of error can occur in both census and sample surveys?

Ans: Non-sampling errors.

10. Why are non-sampling errors also called measurement errors?

Ans: Because they occur due to mistakes in acquiring, recording, or processing statistical data.

11. Give one reason why non-sampling errors occur.

Ans: Due to negligence or lack of knowledge of the informants.

12. What is a measurement error?

Ans: An error caused by differences in measurement scales or rounding-off methods used by investigators.

13. What is a non-response error?

Ans: An error that occurs when respondents do not provide the required information.

14. Which type of error occurs during addition, subtraction, or multiplication of data?

Ans: Arithmetical error.

15. Which type of error occurs only in sample studies?

Ans: Sampling error.