作者celestialgod (攸蓝)
看板Math
标题[机统] 硬币问题
时间Wed Jan 26 17:39:05 2011
A coin, having probability p of landing heads, is continually flipped until
at least two head and one tail have been flipped. Find the expected number od
flips needed.
请版上大大帮忙解题 谢谢><
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※ 发信站: 批踢踢实业坊(ptt.cc)
◆ From: 140.116.130.213
1F：推 Aweather :穷举就可以了 01/26 18:34
穷举?可以简述一下过程吗?
※ 编辑: celestialgod 来自: 140.116.130.213 (01/26 19:43)