Drunk man on a bridge
A man stands at the 17-meter mark of a 100-meter bridge and takes m steps with equal probability, stopping when he reaches either end (0 m or 100 m). What is the expected number of steps until he reaches an end?
Show hints (2)+
- Distances to the two ends are 17 and 83.
- for the symmetric walk.
Answer
Reveal answer →Final answer
1411
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