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Subject and Keywords:
The relations between the parameters of "total" distribution (defined for all values of the random variable) and moments of truncated distribution (this is the distribution of the analysed random variable defined in a certain rangeof values of this variable) for the exponential and geometrical distributions are described in this study. Examples are given of assessment of the longevity of individuals in a whole population on this basis of information on the longevity of defined age groups, and assessment of the longevity of a selected group on the basis of information concerning the whole population. Using the geometrical truncated distribution an example is given of assessment of the trapping probability of an individual and assessment in the numbers of the given population for a short period.
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Projects co-financed by:
Operational Program Digital Poland, 2014-2020, Measure 2.3: Digital accessibility and usefulness of public sector information; funds from the European Regional Development Fund and national co-financing from the state budget.