The data collected and processed by some other agency are called:
Primary data
Secondary data
Sample survey
Random sampling
Raw data is also known as:
Survey
Sample method
A smaller group selected from the population from which the relevant information would be sought.
Sample
Pilot survey
None of these
______________ are mainly selected on the basis of judgement,purpose,convenience or quota.
Non-random sampling
Sampling errors
Non-sampling errors
What helps in pre-testing of the questionnaire?
Personal interview
The method which cannot be used by illiterates.
Telephone interview
Sampling
Mailing questionnaire
____________ method does not allow influencing of the respondents by the interviewer.
The most common type of instrument used in survey is:
Census
Questionnaire
____________ errors can arise in data acquisition,by non-response or by bias in selection.
______________ is a method of gathering information from individuals.
