Online Test — Collection of Data
15 Questions • 15 min • Chapter MCQ
15:00
Question 1 of 15
The first stage of a statistical investigation is:
Analysis
Collection of data
Presentation
Interpretation
Explanation: Collection of data is the first stage.
Question 2 of 15
Data collected first-hand by the investigator are:
Secondary data
Primary data
Old data
Published data
Explanation: Primary data are collected first-hand for a specific purpose.
Question 3 of 15
Data already collected by someone else and reused are:
Primary data
Secondary data
Raw data
Field data
Explanation: Secondary data are second-hand, collected by others.
Question 4 of 15
Which is an advantage of secondary data?
Always perfectly suited
Saves time and money
Never needs checking
Always primary
Explanation: Secondary data save time and cost since they already exist.
Question 5 of 15
The Census of India report is an example of a ____ source.
Published secondary
Primary
Unpublished
Sample
Explanation: It is a published secondary source.
Question 6 of 15
The whole group being studied is called the:
Sample
Population (universe)
Unit
Schedule
Explanation: The whole group is the population or universe.
Question 7 of 15
Studying every single unit of the population is the:
Sample method
Census method
Random method
Mail method
Explanation: The census method studies every unit.
Question 8 of 15
Which method is cheaper and faster for large populations?
Census method
Sample method
Complete enumeration
Full count
Explanation: The sample method is cheaper and faster.
Question 9 of 15
In random sampling, every unit has:
No chance
An equal chance of selection
A fixed place
Double weight
Explanation: Random sampling gives every unit an equal chance, avoiding bias.
Question 10 of 15
Dividing the population into groups and sampling each is called:
Random sampling
Stratified sampling
Systematic sampling
Census
Explanation: Stratified sampling samples from each stratum/group.
Question 11 of 15
Questioning informants face-to-face personally is:
Direct Personal Investigation
Mailed questionnaire
Correspondents
Schedule method
Explanation: Direct Personal Investigation involves face-to-face questioning.
Question 12 of 15
Questioning witnesses instead of the informants themselves is:
Direct Personal Investigation
Indirect Oral Investigation
Mailed questionnaire
Census
Explanation: Indirect Oral Investigation questions others who know about the informants.
Question 13 of 15
A list of questions the informant fills in himself is a:
Schedule
Questionnaire
Ledger
Register
Explanation: A questionnaire is filled in by the informant himself.
Question 14 of 15
A schedule is filled in by the:
Informant
Enumerator
Correspondent
Editor
Explanation: An enumerator fills a schedule on the informant's behalf.
Question 15 of 15
The difference between the sample and the true population value is called:
Sampling error
Census
Bias removal
Tally
Explanation: Sampling error is the difference between the sample and the population value.