The data collected and processed by some other agency are called
Primary data
Secondary data
Sample survey
Random sampling
A survey which includes every element of the population is known as
Census
Pilot survey
____________ should be completed before the final survey commences.
Personal interview
Telephone interview
______________ is based on first hand information.
Sampling
Census method
____________ refers to a group or section of the population from which information is to be obtained.
Sample
Random
Sampling error
____________ helps in pre-testing of the questionnaire.
None of these
___________ method is expensive.
Mailing questionnaire
____________ method is used when the researcher has access to all the members.
Raw data is also known as
Survey data
un processed data
Sample data
______________ method is cheaper.
