# Shared Flashcard Set

## Details

Elementary Statistics
n/a
13
Mathematics
09/20/2011

Term
 statistics
Definition
 a group of methods used to collect, analyze, & interpret data
Term
 Population
Definition
 is the group of interest (the whole group)
Term
 Sample
Definition
 a selection of a few elements of the population used for the study
Term
 Statistics
Definition
 summary measures calculated from sample data (2nd definition)
Term
 Parameters
Definition
 summary measures calculated from population data
Term
 Descriptive Statistics
Definition
 group of methods used to describe, display, and organize data
Term
 Inferential Statistics
Definition
 methods that use sample results to make decisions about the population
Term
 Representative Sample
Definition
 a sample that has all (or almost all) of the population characteristics
Term
 Random Sample
Definition
 drawn in a way such that every member of the population has an equal chance of being selected
Term
 Sampling With Replacement
Definition
 each time an element is selected for the sample, it is put back into the population before the next element is selected
Term
 Sample Without Replacement
Definition
 each element that is selected does not get put back into the population before the next element is selected
Term
 data set
Definition
 is the whole set of data from a population or sample.
Term
 variable
Definition
 is the characteristic being studied that assumes a different value
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