term1 Definition1term2 Definition2term3 Definition3
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POPULATION
The entire collection of individuals (or objects) about which information is desired
SAMPLE
A subset of the population selected for thestudy
VARIABLE
Any characteristic whose value may change fromindividual or object to the next
DATA
Observations on a single variable,two variables simultaneously, or two or more variables simultaneously
UNIVARIATE DATA
having a single variable
BIVARIATE DATA
having two variables simultaneously
MULTIVARIATE DATA
having two or more variables simultaneously
CATEGORICAL VARIABLE
A variable whose individual observations are numbers counting or measuring some quantity (ex. Zip Codes, State of birth, brand name, price)
NUMERICAL VARIABLE
A variable whose individual observations are numbers counting or measuring some quantity (ex. Weight, height)
DISCRETE NUMERICAL
Possible values represent individual points on the number line (“counting”)
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