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III BSc Stat P5 U3 L25 Comparision of Variances in Stratified, Systematic and Simple random sampling

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III BSc Stat P5 U3 L12 Theorem. Variance of the sample mean is minimum for fixed total cost C

III BSc Stat P5 U3 L10 Theorem. Variance of sample mean is minimum if ni is proportional to NiSi

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III BSc Stat P5 U3 L5 Theorem. Stratified sample mean is an Unbiased estimator of Population mean

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III BSc Stat P5 U3 L3 Часть 1 Обозначения и терминология стратифицированной случайной выборки

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III BSc Stat P5 U3 L23 Form 3. Variance of Systematic Sample mean with correlation within stratum

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