Indexed by：
Abstract：
The author discussed the problem of multi phase ratio estimation, put forward an approximate formula and asymptotic unbiased estimate for the mean square sample deviation of ratio estimate.
Keyword：
Reprint 's Address：
Email：
Source ：
统计研究
Year： 2001
Issue： 03
Page： 48-50
Cited Count：
SCOPUS Cited Count：
ESI Highly Cited Papers on the List： 0 Unfold All
WanFang Cited Count：
Chinese Cited Count：
30 Days PV： 0
Affiliated Colleges：
