Research by Sampling, Basic Method in the Study of Social and Economic Phenomena, between Teaching and Practice

Statistical research by spot checks is used with great results in almost all economic and social research on a random basis. The social field and especially the living standard and the life quality scope, due to their complexity, sometimes require as the sole alternative to study phenomena – research by sampling, as sometimes there may occur situations when exhaustive statistical research is impossible to be carried out or the costs for achieving the goal of such a thorough research would be too high. Also, for the sake of clarity, we find it necessary to resort to a methodological approach, as it is both didactic and practical.