Produktinformation
High Quality Content by WIKIPEDIA articles! In statistics, stratified sampling is a method of sampling from a population. When sub-populations vary considerably, it is advantageous to sample each subpopulation independently. Stratification is the process of grouping members of the population into relatively homogeneous subgroups before sampling. The strata should be mutually exclusive: every element in the population must be assigned to only one stratum. The strata should also be collectively exhaustive: no population element can be excluded. Then random or systematic sampling is applied within each stratum. This often improves the representativeness of the sample by reducing sampling error. It can produce a weighted mean that has less variability than the arithmetic mean of a simple random sample of the population.Produktkennzeichnungen
HerausgeberLambert M. Surhone, Miriam T. Timpledon, Sussan F. Marseken
EAN9786130363963
ISBN-139786130363963, 9786130363963
eBay Product ID (ePID)163060098
Produkt Hauptmerkmale
VerlagBetascript Publishing, Betascript Publishers
Erscheinungsjahr2010
BuchtitelStratified Sampling
Anzahl der Seiten80 Seiten
SpracheEnglisch
AutorLambert M. Surhone, Miriam T. Timpledon, Susan F. Marseken
Zusätzliche Produkteigenschaften
HörbuchNo
SprachausgabeEnglisch
InhaltsbeschreibungPaperback
Seiten80 Seiten
Item Height5mm
ISBN-13-106130363966
Item Length22cm
HerausgaberLambert M. Surhone, Miriam T. Timpledon, Susan F. Marseken