| Abstract: | An urn contains colored balls,  ~balls of each of  different colors. The balls are drawn sequentially and equiprobably, one ball at a time, and then each drawn ball drawn is either returned to the urn (sampling with replacement) or left outside the urn (sampling without replacement). The drawing continues until some  colors are drawn at least  ~times each. Observable statistics are the numbers  ,  , of colors that have appeared precisely  ~times each by the stopping time. The asymptotic behavior as  of these values for each of the two sampling models is studied; the possibility of their use for identifying the model is discussed. |
