____________ refers to a group or section of the population from which information is to be obtained.
Sample
Random
Pilot survey
None of these
The data in a survey are collected by _____________.
Personal interview
Telephone interview
Sampling
Mailing questionnaire
______________ method is cheaper.
__________ helps in pretesting of the questionnaire.
Sample survey
______________ is known as method of complete enumeration.
Census
____________ is a smaller group selected from the population from which the relevant information would be sought.
Survey
In a ______________, every individual is given an equal chance of being selected for providing information.
Random sampling
Non-random sampling
Sampling errors
Non-sampling errors
The data are collected and processed by some other agency are called _____________.
Primary data
Secondary data
Randam sampling
A survey which includes every element of the population is known as ______________.
The difference between the actual value of a parameter of the population and its estimate is the ____________.
