AL/MOST/KÖ\NI/GS\BERG
A surgeon goes every day from his house A to his hospital B. He crosses the Black River using two or three bridges depending on the traffic — and his mood.
What is the probability P that the surgeon will be able to go from A to B the morning after the thunderstorm?
The same morning, a fishing boat wants to go from X to Y; any destroyed bridge prevents it from passing under. What is the probability Q of the fishing boat going from X to Y after the storm?
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