Mathematics, 07.11.2019 04:31 jamesgotqui6

Abuilding contains two elevators, one fast and one slow. the average waiting time for the slow elevator is 3 min. and the average waiting time of the fast elevator is 1 min. if a passenger chooses the first elevator with probability 2 3 and the slow elevator with probability 1 3 , what is the expected waiting time?

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Abuilding contains two elevators, one fast and one slow. the average waiting time for the slow eleva...