Collection of D...

Which of the following method comes first in collecting primary and secondary data?

Population are unlimited in size are referred to as____________.

Which of the following is/are not the methods of collection of primary data.

A list of all units under study is known as _________.

Primary data mean________.

Which of the following operations is conducted after a gap of every ten years?

Which of the following is a very costly and time-consuming method?

The formula of Null hypothesis is _________.

The basis for all scientific sampling is ____________.

The non-sampling errors may arise due to  _________.