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Stats Vocab

QuestionAnswer
Population statistical study is the entire group of individuals we want information about
Census collects data from every individual in the populaton
Sample is a subset of individuals in the population from which we collect data
Sample Survey study that collects data from a sample that is chosen to represent a specific population
Convenience Sampling selects individuals from the population who are easy to reach
Bias the design of a statistical study shows bias if it is very likely to underestimate or very likely to overestimate the value you want to know
Voluntary Response Sampling allows people to choose to be in the sample by responding to general invitation
Random Sampling involves using a chance process to determine which members of a population are included in the sample
Simple Random Sample (SRS) of size (n) is chosen in such as way that every group of (n) individuals in the population has an equal chance to be selected as the sample
Strata groups of individuals in a population who share characteristics thought to be associated with the variables being measured in a study
Stratified Random Sampling selects a sample by choosing an SRS from each stratum and combing the SRSs into one overall sample
Cluster group of individuals in the population that are located near each other
Cluster Sampling selects a sample by randomly choosing clusters and including each member of the selected cluster in the sample
Under coverage occurs when some members of the population are less likely to be chosen or cannot be chosen in a sample
Nonresponse occurs when a individual chosen for the sample can't be contacted or refuses to participate
Reponse bias occurs when there is a systematic pattern of inaccurate answers to a survey question
Created by: japple
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