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19 Cards in this Set
- Front
- Back
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subjects volunteer to be part of sample
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volunteer (voluntary response)
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convenience sample
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uses resources that are conveinent
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choose a beginning point and select every Kth individual
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systematic
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SRS (simple random sample)
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every person has equal chance of selection, each sample is of same size
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stratified sample
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divide pop. into different strata (subpopulations) randomly chose from each strata
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cluster sample
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divide the population into subpopulations, randomly chose subpopulation and all individuals
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random digits table
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table with string of digits (0-9) where 1. each entry has same chance of being chosen, entries are independent (1 outcome tells us nothing about second outcome)
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experiment
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a test carried out under a controlled experiment
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sample space
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list of all possible outcomes for the experiment/event
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subjects volunteer to be part of sample
|
volunteer (voluntary response)
|
|
|
convenience sample
|
uses resources that are conveinent
|
|
|
choose a beginning point and select every Kth individual
|
systematic
|
|
|
SRS (simple random sample)
|
every person has equal chance of selection, each sample is of same size
|
|
|
stratified sample
|
divide pop. into different strata (subpopulations) randomly chose from each strata
|
|
|
cluster sample
|
divide the population into subpopulations, randomly chose subpopulation and all individuals
|
|
|
random digits table
|
table with string of digits (0-9) where 1. each entry has same chance of being chosen, entries are independent (1 outcome tells us nothing about second outcome)
|
|
|
experiment
|
a test carried out under a controlled experiment
|
|
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sample space
|
list of all possible outcomes for the experiment/event
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probability
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proportion (P) of times the outcome would occur in a very long series of repetitions
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