Class 11 Collection of Data

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1. Which data is collected by the investigator himself? 

(a) Primary         (b) Secondary                                  (c) Both (a) and (b)   (d) None of these

2. Data collected from 'The Times of India' is an example of:

(a) Primary Data   (b) Secondary Data

(c) Census     (d) None of these

3. Data collected on religion from the census reports are:

(a) Sample Method     (b) Secondary data

(c) Primary data   (b) Census

4. When population under investigation is infinite, we should use:

(a) Sample data  (b) Census Method

(c) Either (a) or (b)  (d) Neither (a) nor (b)

5. Data from secondary source are:

(a) Collected for other purposes than the current study

(b) Obtained from the newspaper

(c) More reliable than data from a primary source

(d) Both (a) and (b)

6. Primary data is preferred over secondary data where:

(a) Time available is short

(b) Accuracy is important  (c) Sufficient finance is not available

(d) Much accuracy is not required

7. The data collected on the height of a group of students after recording their heights with a measuring tape are:

(a) Primary data   (b) Continuous data

(c) Discrete data   (d) Secondary data

8. After every ten years, information regarding population of India is collected through:

(a) Census (b) Sample

(c) Both (a) and (b)   (d) Neither (a) nor (b)

9. Sample study is useful:

(a) When population is not completely known

(b) As it is easy to handle samples 

(c) As results are more reliable

(d) It is cheap

10. Which method of collection of data covers the widest area?

(a) Direct Personal Investigation

(b) Mailed Questionnaire Method

( c) Telephone interview method  

(d) All of these

11. Which of the following is a limitation of Indirect Oral Investigation? 

(a) Lack of Accuracy (b) Costly

(c) Not suitable for wide areas (d) All of these

(a) Personal Bias

12. In a good questionnaire: 

(a) Number of questions should be numerous

(b) Questions relating to mathematical computations should be asked

(c) Personal Questions should be preferred

(d) Questions using double negatives should be avoided

13. The quickest method to collect primary data is:

(a) Direct Personal Investigation

(b) Indirect Oral Investigation

(c) Telephone Interview (d) Mailed Questionnaire Method

14. Stratified sample is preferred where:

(a) Population is perfectly homogeneous

(b) Population is non-homogeneous

(c) Random sampling is not possible

(d) Small samples are required

19. The method of sampling in which universe is divided into a number of groups and then certain numbers of items are taken from each group at random.

(a) Stratified Random Sampling

(b) Systematic Sampling

(d) Multistage Sampling

(b) Telephonic Interviews   

(d) All of these

16. Read the following statements: Assertion (A) and Reason (R). Choose one of the correct alternatives:

Assertion (A): Primary data is original.

Reason (R): Primary data is collected by the investigator himself.

Alternatives:

(a) Both Assertion (A) & Reason (R) are True & Reason (R) is the correct explanation of Assertion (A). 

(b)Both Assertion (A) & Reason (R) are True & Reason (R) is not the correct explanation of Assertion (A).

(c) Assertion (A) is True but Reason(R) is False.

(d) Assertion (A) is False but Reason (R) is True.

17. Read the following statements: Assertion (A) and Reason (R). Choose one of the correct alternatives:

 Assertion (A): Under Direct Personal Investigation, the investigator collects data by having direct contact with the informant and conducts on-the-spot enquiry.

Reason (R): Indirect oral Investigation can be used to cover a wide area of Investigation as compared to Direct Personal Investigation. 

(a) Both Assertion (A) & Reason (R) are True & Reason (R) is the correct explanation of Assertion (A). 

(b)Both Assertion (A) & Reason (R) are True & Reason (R) is not the correct explanation of Assertion (A).

(c) Assertion (A) is True but Reason(R) is False.

(d) Assertion (A) is False but Reason (R) is True.

18. Read the following statements: Assertion (A) and Reason (R). Choose one of the correct alternatives:

Assertion (A): The results of Indirect Oral Investigation are very accurate

Reason (R): In case of Indirect Oral Investigation, Information is obtained from other persons, not directly connected.

Alternatives:

(a) Both Assertion (A) & Reason (R) are True & Reason (R) is the correct explanation of Assertion (A).

(b)Both Assertion (A) & Reason (R) are True & Reason (R) is not the correct explanation of Assertion (A).

(c)Assertion (A) is True but Reason (R) is False.

(d) Assertion (A) is False but Reason (R) is True.

19. Read the following statements: Assertion (A) and Reason (R), Choose one of the correct alternatives:

Assertion (A): Census method is also known as '100% Enumeration'.

Reason (R): Data is collected from each and every element of the population under census method.

alternatives:

(a) Both Assertion (A) & Reason (R) are True & Reason (R) is the correct explanation of Assertion (A).

(b) Both Assertion (A) & Reason (R) are True & Reason (R) is not the correct explanation of Assertion (A).

(c) Assertion (A) is True but Reason (R) is False.

(d)Assertion (A) is False but Reason (R) is True.

20. Read the following statements: Assertion (A) and Reason (R). Choose one of the correct alternatives:

Assertion (A): Sampling Method is an economical method.

Reason (R): Under sampling, analysis of data is confined only to a fraction of the population.

alternatives:

(a) Both Assertion (A) & Reason (R) are True & Reason (R) is the correct explanation of Assertion (A).

(b) Both Assertion (A) & Reason (R) are True & Reason (R) is not the correct explanation of Assertion (A).

(c) Assertion (A) is True but Reason (R) is False.

(d) Assertion (A) is False but Reason (R) is True.

21. Read the following statements carefully and choose the correct alternative from the following:

Statement 1: Direct Personal Investigation is suitable when area of investigation is large.

Statement 2: Direct Personal Investigation is also known as Personal Interview.

Alternatives:

(a) Both the statements are true.

(b) Both the statements are false.

(c) Statement 1 is true & Statement 2 is false.

(d) Statement 2 is true & Statement 1 is false.

22. Read the following statements carefully and choose the correct alternative from the following:

Statement 1: Indirect Oral Investigation is a very costly method.

Statement 2: The degree of accuracy is extremely high in case of indirect oral investigation.

Alternatives:

(a) Both the statements are true.

(b) Both the statements are false.

(c) Statement 1 is true & Statement 2 is false.

(d) Statement 2 is true & Statement 1 is false.

23. Read the following statements carefully and choose the correct alternative from the following:

Statement 1: Data originally collected by an investigator for the first time for some specific purpose is known as Secondary Data.

Statement 2: Population census conducted by Government of India is an example of Secondary Data.

Alternatives:

(a) Both the statements are true.

(b) Both the statements are false.

(c) Statement 1 is true & Statement 2 is false.

(d) Statement 2 is true & Statement 1 is false.

24. Read the following statements carefully and choose the correct alternative from the following:

Statement 1: Information from Correspondents is widely used by news channels to collect news information.

Statement 2: The method of 'Information from Correspondents' is suitable when regular and continuous information is required.

Alternatives:

(a) Both the statements are true.

(b) Both the statements are false.

(c) Statement 1 is true & Statement 2 is false.

(d) Statement 2 is true & Statement 1 is false.

6. Read the following statements carefully and choose the correct alternative from the following:

Statement 1: in case of census method, data is collected from each and every element of the population.

Statement 2: Consus method is generally adopted when intensive study of population is required.

Alternatives:

(a) Both the statements are true.

(b) Both the statements are false.

(c) Statement 1 is true & Statement 2 is false.

(d) Statement 2 is true & Statement 1 is false.






Answer Keys

1. (a) Primary

2. (b) Secondary Data

3. (b) Secondary data

4. (a) Sample data

5. (d) Both (a) and (b)

6. (b) Accuracy is important (c) Sufficient finance is not available

7. (a) Primary data

8. (a) Census

9. (a) When population is not completely known

10. (b) Mailed Questionnaire Method

11. (a) Lack of Accuracy

12. (d) Questions using double negatives should be avoided

13. (c) Telephone Interview (d) Mailed Questionnaire Method

14. (b) Population is non-homogeneous

15. (a) Stratified Random Sampling

16.  (a) Both Assertion (A) & Reason (R) are True & Reason (R) is the correct explanation of Assertion (A). 

17. (b) Both Assertion (A) & Reason (R) are True & Reason (R) is not the correct explanation of Assertion (A).

18. (d) Assertion (A) is False but Reason (R) is True

19. (a) Both Assertion (A) & Reason (R) are True & Reason (R) is the correct explanation of Assertion (A).

20. (a) Both Assertion (A) & Reason (R) are True & Reason (R) is the correct explanation of Assertion (A).

21. (d) Statement 2 is true & Statement 1 is false.

22. (b) Both the statements are false.

23. (b) Both the statements are false.

24. (a) Both the statements are true.

25. (a) Both the statements are true.

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