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Chapter Two Vocab
Data, Data Table, Case, Population, Sample, Variable, Unit, Categorical & Quatitative Variable
9
Mathematics
11th Grade
11/04/2013

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Term
Data
Definition
Systematically recorded information, whether numbers or labels, together with its context
Term
Data Table
Definition
An arrangement of data in which each row represents a case and each column represents a variable.
Term
Case
Definition
an individual about whom or which we have data
Term
Population
Definition
All the cases we wish we knew about
Term
Sample
Definition
The cases we actually examine in seeking to understand the much larger population
Term
Variable
Definition
Holds information about the same characteristic for many cases
Term
Unit
Definition
A quantity of amount adopted as a standard of measurement, such as dollars, hours, or grams.
Term
Categorical variable
Definition
A variable that names categories (wether with numbers or names)
Term
Quantitative variable
Definition
A variable in which the numbers act a numerical values. ALWAYS have units.
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