单项选择题
设X 服从参数为(m ,P )的二项分布,x 1,x 2…,x n 是来自其中的一个样本,参数P 为一随机变量,且P 服从参数为(a ,b )的贝塔分布,则P 的后验分布为()。
A.指数分布B.贝塔分布,参数(a ,b )C.贝塔分布,参数为(∑X i +a ,mn-∑X i +b )D.泊松分布E.负二项分布
A.0.5241B.0.5133C.0.6D.0.5134E.0.5243
A.0.539,0.341,0.120B.0.439,0.441,0.120C.0.541,0.339,0.120D.0.341,0.539,0.120E.0.539,0.120,0.341
A.8.5B.9.0C.9.5D.10.0E.10.5
A.156B.206C.256D.306E.356
A.1954.46,566.79B.1875.26,476.79C.1875.26,566.79D.1954.46,476.79E.1954.46,376.25
A.7B.8C.9D.10E.11
A.0.1557B.0.3595C.0.3679D.0.5883E.0.6128
A.0.0265B.0.0356C.0.0577D.0.0596E.0.0968
A.0.4243B.0.2644C.0.1923D.0.0423E.0.0323
A.1,2,0,1,0B.2,1,0,1,0C.1,2,1,0,0D.3,2,2,1,1E.2,1,1,0,0