Open University M245 Probability and statistics course : videotape 3. A probability model for rare events [VHS Tapes]. Open University. - Milton Keynes Open University 1985 Minutes of play 23 ISBN: 0.00 Subjects--Personal Names: Mathematical statistics.ProbabilitiesProbabilities -- Rare events.Statistics -- Rare events.Statistics. Dewey Class. No.: QA/273 / OPE