exhaustion exhaustive exhaustion jointly exhaustive exhaustive http://en.wikipedia.org/wiki/Collectively_exhaustive_events collectively exhaustive exhaustion https://en.wikipedia.org/wiki/Collectively_exhaustive_events collectively exhaustion mutually-exclusive-and-exhaustive jointly exhaustive Collectively exhaustive events exhaustive https://en.wikipedia.org/wiki/Collectively_exhaustive_events https://en.wikipedia.org/wiki/Collectively_exhaustive_events