Predictive Estimates in Population Models with Variable Dynamics Under Uncertainties

In this paper, we investigate the predictive estimates of the model which at the initial time interval describes a slower population growth, and later turns into a model with a rapid growth of such a population. For considered problem, with unknown initial conditions and parameters of differential equations, however for a known number of persons in the population at certain moments of time, we obtain the predictive sets at a given time under certain conditions and substantiate the formulas for calculating the minimum and maximum number of persons in the population.