In sample survey,unequal probability samplings are more complicated than equal probabilities. Consequently,under the premise of ensuring sampling precision,we prefer to transform the unequal probability cases into equ...In sample survey,unequal probability samplings are more complicated than equal probabilities. Consequently,under the premise of ensuring sampling precision,we prefer to transform the unequal probability cases into equal probability cases. Through his pilot study,the author finds three methods to equalizing the unequal probability cases:stratified sampling estimation,observational characteristics transferring methods and regression estimation.展开更多
文摘In sample survey,unequal probability samplings are more complicated than equal probabilities. Consequently,under the premise of ensuring sampling precision,we prefer to transform the unequal probability cases into equal probability cases. Through his pilot study,the author finds three methods to equalizing the unequal probability cases:stratified sampling estimation,observational characteristics transferring methods and regression estimation.
