Justifying an Invalid Derivation of the Probability of a Union of Events |
| |
| Authors: | Paul H. Jackson |
| |
| Affiliation: | University College of Wales , Aberystwyth, Dyfed SY23 3DB, Wales , U.K. |
| |
| Abstract: | An appealing, but invalid, derivation of the probability that at least one of n events occurs is justified, using a particular definition of subtraction of events. The probabilities that exactly m and at least m of the n events occur are derived similarly. |
| |
| Keywords: | Probability of a union Occupancy problem Matching problem |
|
|
