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
______________ is a method of gathering information from individuals.
Sampling
Primary data
Secondary data
Survey
The purpose of the survey is to:
Collect data
Frequency distribution
Information
Presenting data
___________ saves time and cost.
Sample survey
None of these
The less expensive method of data collection.
Mailing questionnaire
Personal interview
Telephone interview
All of the above
The most common type of instrument used in survey is:
Census
Questionnaire
Sample method
The difference between the actual value of a parameter of the population and its estimate is:
Non - sampling error
Sampling error
______________ is known as method of complete enumeration.
Pilot survey
____________ errors can arise in data acquisition,by non-response or by bias in selection.
Non-sampling errors
Non-random sampling
Raw data is also known as:
