Probability

Asymmetric Random-Walk Exit Time

Difficulty
xxx xxxxx xx xxxxxxxx \(x=x\) xx xxx xxxxxxx xxxxxx xxxx xxx xxxxxxxxxx xxxx x xxxx xxx-xxxxx xxx. xx xxx xxxxxxx xx \(x\), \(x\), xx \(x\), xxx xxxx xxx xxxx xx xxx xxxxx. xx xxx xxxxxxx xx \(x\), \(x\), xx \(x\), xxx xxxx xxxxx xxxxx xx xxx xxxx. xxxx xx xxx xxxxxxxx xxxxxx xx xxxxx xxxxx xxxx xxxxxxxx xxxx xxx xxxxxx xx xx xxxxx \(xx\)?

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