回複：回複：本來就不是什麽條件概率

jinjing討論的就是a one-shot case.

如果原題中"probability of seeing a shooting star"指的是"probability of seeing at least one shooting star",那布衣的算法就很好,不必討論了.

 

所有跟帖： 

• "to see a star" better to be "to see THE start", please read my -calligraphy- ♂ (0 bytes) () 02/03/2011 postreply 10:58:52