RMB301Xuất hiện trong 1 đề thi
What is the main difference between primary and secondary data in research?
Các lựa chọn
APrimary data is collected by the researcher, while secondary data is collected by someone else.
BPrimary data is objective, while secondary data is subjective.
CPrimary data is up-to-date, while secondary data is outdated.
DPrimary data is reliable, while secondary data is unreliable.