#53. A prisoner is trapped in a cell containing 3 doors. The first door leads to a tunnel that returns him to his cell after 2 days travel. The second leads to a tunnel that returns him to his cell after 4 days travel. The third door leads to freedom after 1 day of travel. If it is assumed that the prisoner will always select doors 1, 2 and 3 with respective probabilities 0.5, 0.3, and 0.2. what is the expected number of days until the prisoner reaches freedom?
(Question is also included in attachment)© BrainMass Inc. brainmass.com March 4, 2021, 6:08 pm ad1c9bdddf
If we assume that X is the time spent on finding the right path and Y is choice of one of those ways then we shall have ...
This shows how to use probabilities to determine the expected number of days until a prisoner reaches freedom.