A survey which includes every element of the population is known as
Census
Sample survey
Pilot survey
Primary data
The data collected and processed by some other agency are called
Secondary data
____________ method is used when the researcher has access to all the members.
Personal interview
Telephone interview
Mailing questionnaire
Raw data is also known as
Survey
Sample method
____________________ method cannot be used by illiterates.
Sampling
The difference between the actual value of a parameter of the population and its estimate is the
Non - random sampling
Non - sampling error
Random sampling
Sampling error
______________ method is less expensive.
All of these
______________ method is cheaper.
In __________ method the investigator asks questions over the telephone.
