@ARTICLE {, title = {Podmienená pravdepodobnosť pomocou pravdepodobnostného počítadla}, author = {Lendelová, Katarína}, journal = {Obzory matematiky, fyziky a informatiky}, year = {2003}, volume = {32}, number = {2}, pages = {11--19}, issn = {1335-4981}, abstract = {The aim of this contribution is to show possibility of using the probabilistic abacus for a calculation of conditional probability and for a description the relation between events.We present calculation of conditional probability without using formulas like Bayes’s formula on the examples.}, }