作者kero961240 (阿哲)
看板Statistics
标题[问题] markov urn 问题
时间Sun Jan 8 22:54:32 2017
各位大大好 小弟上课遇到了一提问题 思考很久实在无头绪
想请大家帮帮忙 这关西到我能不能毕业
题目为以下 如能成功 小弟涌泉以报
(Option 2) An urn has m + n balls, m of which are black and n of which are
white.
Suppose we draw one ball at a time from the urn without replacement and take
note of the color of each ball drawn in a sequence. Let U be the runs
statistic in
the sense of [1] in a sequence of m + n = 8 responses, e.g., one possible
outcome
would be BBWBBWWB and U = 5 when m = 5 and n = 3.
(a) Compute the distribution of U when m = 6 and n = 4.
如在上面讲不好说的话
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必当面感恩
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1F:→ coastq22889: 有点看不懂 U是取值在“6个B与4个W的字串排列“的r.v 01/09 21:41
2F:→ coastq22889: .吗 01/09 21:41