Collection of D...

Primary data may be collected by ______________.

Primary data is _______________.

The sources from where primary data can be collected are known as _______________.

Which of the following terms best describes data that we originally collected at an earlier time by a different person for a different purpose?

_________refers to the data which is already collected and published by other authorities.

Secondary data is __________________.

Which of the following organization collect and publish the primary data?

In case the data were collected on the basis of sample, the users should satisfy themselves regarding: 

Which of these is not a method of data collection?

The techniques of census investigation is advocated by its users because of _________________.