Fichas

1.1 Population and Sample

Sea Chel Pie Maths A-Level Inglés 7 fichas

Fichas del conjunto (7)

1Populationthe Whole set of items
that are of Interest
2Raw Datainformation that i obtained
from the population
3CensusObserves or measures
every member of a population
4SampleSelection of Observations
taken from a subset of the population
which is used to find out info about population as a whole
5how can Size of Sample affect Validity (4)@ size depends on accuracy and available resources
@ larger sample = more accurate, more resources needed
@ if pop varied, larger sample needed
-> than if it were uniform
@ diff samples lead to diff conclusions, due to natural variation in pop
6Sampling unitsIndividual units of a population
7Sampling Framewhen Sampling unit of a pop. are individually named or numbered to form a list

Descripción: A-Level (Data Collection) Maths Fichas sobre 1.1 Population and Sample, creado por Sea Chel Pie el 25/11/2018.
Creado por: Sea Chel Pie · nov 2018
Actualizado: 25 nov 2018
Visitas: 0
Valoración