@MISC{RPR_1.MIZ,
  AUTHOR = {Popio{\l}ek, Jan},
  TITLE = {Introduction to Probability},
  DAY = {13},
  MONTH = {June},
  YEAR = {1990},
  ADDRESS1 = {Warsaw University\\Bia{\l}ystok},
  SUMMARY = {Definitions of Elementary Event and Event in
any sample space $E$ are given. Next, the probability of an Event
when $E$ is finite is introduced and some properties of this function
are investigated. Last part
of the paper is devoted to the conditional probability and 
essential properties of this function (Bayes Theorem).}}

