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Chapter 2 Vocab
data, population, variable, sample
8
Mathematics
10th Grade
11/05/2013

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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
A case is 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
A variable holds information about the same characteristic for many cases.
Term
Quantitative Variable
Definition
A variable in which the numbers act as numerical values. Always have units.
Term
Categorical Variable
Definition
A variable that names categories (whether with words or numerals)
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