Kubaychuk, O2018-09-282018-09-282016-06Journal of Advances in Mathematics (JAM). Vol. 12, Num. 5, - 2016, P. 6261 – 62692 3 4 7 - 1 9 2 1http://er.nau.edu.ua/handle/NAU/36352We consider the problem of the classification of an object from the observation after its numerical characteristic in case of three prescribed classes. We also study a problem on finding and asymptotic behaviour of threshold-based classification rules constructed from a sample from a mixture with varying concentrations.We consider the problem of the classification of an object from the observation after its numerical characteristic in case of three prescribed classes. We also study a problem on finding and asymptotic behaviour of threshold-based classification rules constructed from a sample from a mixture with varying concentrations.classification ruleArticle