Читать книгу Sampling and Estimation from Finite Populations - Yves Tille - Страница 30
Proof:
ОглавлениеIf the sample size is fixed, then is not random. In this case, the sum of the inclusion probabilities is exactly equal to the sample size.
If the sample size is fixed, then is not random. In this case, the sum of the inclusion probabilities is exactly equal to the sample size.
