I wanna say the Romans if im wrong PLEASE feel free to correct me.
Answer:
Explanation:The working-age population in a region consists of those in a range of ages, typically 18-64 or 15-64, considered able and likely to work. ... This number is the number of capable employees available in an economy, a country, ... those who are actively employed but are outside of the designated age range.
Answer:
Reliance on available subjects(convenient sampling)
Explanation:
Reliance on available subjects(convenient sampling): It is about relying on the subject that deals with the great caution factor in the research. It is also called a convenient sampling. In this sample, the researcher does not have any control over the representatives of the sample size. This sampling method is used to measure the characteristics of people at a particular time. Convenient sampling is used as a pilot study at the beginning of the research. So this is a useful method but the result outcomes are not generalized to the population.