Basing on the multi nomial distribution and its nature,the paper conducts analysis of method of non equal probability classified cluster sample survey and the un bias estimation of mean,and further researches and prov...Basing on the multi nomial distribution and its nature,the paper conducts analysis of method of non equal probability classified cluster sample survey and the un bias estimation of mean,and further researches and provides the deviation square of the estimation and the un bias estimation of the deviation square.展开更多
文摘Basing on the multi nomial distribution and its nature,the paper conducts analysis of method of non equal probability classified cluster sample survey and the un bias estimation of mean,and further researches and provides the deviation square of the estimation and the un bias estimation of the deviation square.
