There are ___________ main types of sampling.
Two
Three
Four
Five
____________ is a smaller group selected from the population from which the relevant information would be sought.
Survey
Sample
Pilot survey
None of these
____________ method is used when the researcher has access to all the members.
Personal interview
Telephone interview
Mailing questionnaire
Sample survey
The data in a survey are collected by _____________.
Sampling
____________ errors can arise in data acquisition,by non-response or by bias in selection.
Sampling errors
Non-sampling errors
Random sampling
Non-random sampling
______________ is known as method of complete enumeration.
Census
In a ______________, every individual is given an equal chance of being selected for providing information.
Non - random sampling
Non - sampling errors
____________ are based on first hand information.
Primary data
Secondary data
The data are collected and processed by some other agency are called _____________.
Randam sampling
The difference between the actual value of a parameter of the population and its estimate is the ____________.
