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19 Cards in this Set

  • Front
  • Back
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
sample space
list of all possible outcomes for the experiment/event
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
sample space
list of all possible outcomes for the experiment/event
probability
proportion (P) of times the outcome would occur in a very long series of repetitions