Flashcards
1.1 Population and Sample
Cards in this deck (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
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- A-Level Maths (Data Collection) Flashcards on 1.1 Population and Sample, created by Sea Chel Pie on 25/11/2018.
- Created by
- Sea Chel Pie · Nov 2018
- Updated
- Nov 25, 2018
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