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If there are m steps up and n steps down

屋漏痕 2009-07-17 10:55:12 ( reads)

the chance of reaching top before reaching bottom is n/(m+n).

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Commentate

2009-07-17 11:24:38

Cool, then we are done!

dayuwang

2009-07-17 12:29:09

What about the chance of staying on the ladder?

屋漏痕

2009-07-17 12:50:45

0... if one keeps walking.

crazy_math

2009-08-07 02:22:02

回复：What about the chance of staying on the ladder?