T.R. Jain and V.K. Ohri Solutions Class 11 Statistics Economics Chapter 2 - Collection of Data

T.R. Jain and V.K. Ohri Solutions for Class 11 Statistics for Economics Chapter 2 Collection of Data is regarded as an important concept to be studied thoroughly by the students. Here, we have provided T.R. Jain and V.K. Ohri Solutions for Class 11.

Chapter 2 – Collection of data covers the following concepts:

• Primary and secondary sources of collection of data
• Qualities of a good questionnaire
• Collection of secondary data
• Principal differences between primary and secondary data
• Collection of basic data

T.R. Jain and V.K. Ohri Solutions for Class 11 Statistics for Economics Chapter 2: Collection of Data

Question 1

Schedules are filled by the _______ .

a. Investigator

b. Enumerator

c. Informant

d. None of these

Answer:

b. Enumerator

Question 2

Which of the following is a merit of a good questionnaire?

a. Difficulty

b. Less number of questions

c. Improper order

d. Invalid questions

Answer:

b. Less number of questions

Question 3

Which of the following is a secondary data?

a. Government publication

b. Private publication

c. The report published by the SBI

d. All of these

Answer:

a. Government publication

Question 4

Pick an appropriate answer and fill in the blank.

i. ____________ is a person who helps the investigator in collecting the data. (Enumerator/Respondent)

Answer: Enumerator

ii. In __________, the entire information is recorded by the informants themselves. (questionnaires/schedules)

Answer: Questionnaires

iii. Data originally collected in the process of investigation is known as _________ data. (primary/secondary)

Answer: Primary

Question 5

State whether the following statements are true or false.

i. The indirect oral investigation is applied when the field of investigation is limited. (True/False)

Answer: False

ii. Primary data involves more time and expenses. (True/False)

Answer: True

iii. Approximation errors occur due to miscalculation. (True/False)

Answer: False

Question 6

What are the sources of data?

Answer:

There are two sources of data, namely,

• Primary data
• Secondary data

Question 7

Name two important sources of secondary data.

Answer:

Secondary data has various sources to fetch information, namely,

• Government publications
• Semi-government publications

The mentioned solutions are considered to be the best solutions for Statistics for Economics Class 11 T.R. Jain and V.K. Ohri Solutions for Chapter 2: Collection of Data. Stay tuned to BYJU’S to learn more and score well in the upcoming board examinations.