Abstract. The article deals with theoretical principles, methodological techniques and recommendations aimed at revealing regularities in experimental scientific studies, according to which natural and socio-economic processes are established and developed. It is shown that they are expressed and interpreted in the most reliable way by the method of nonlinear functional-factor regression combining their determinism and statistical randomness. Two examples of revealing regularity are given.
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Key words and phrases: природные процессы и явления, экспериментальные измерения, случайные отклонения, нелинейная регрессия, закономерность, коэффициент детерминации, natural processes and phenomena, experimental measurements, random deviates, nonlinear regression, regularity, coefficient of determination
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