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Definition
| the science of collecting organizing analyzing and interpreting data |
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| the collection of all responses that are of interest |
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| a subset of the population |
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| a number that describes a population characteristic |
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| a number that describes a sample characteristic |
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Definition
| involves organizing summarizing and displaying data |
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| involves using sample data to draw conclusions about a population |
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| values of X are numerical measurements |
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| values of X are categories |
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Definition
1. Experiment- apply treatment to group
2. Simulation- use a model to reproduce condition
3. Census- a count or measure of entire population
4. Sampling- count or measure of part of the population |
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Definition
1. Simple- every sample of same size has equal chance to be picked
2. Cluster- population divided into naturally occuring groups
3. Systematic- decide on sample size
4. Stratified- population divided into groups based on common characteristic |
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