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Chapter 2 Terms
data, sample, case, population
9
Mathematics
11th Grade
11/05/2013

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Term
data
Definition
systematically recorded info., whether numbers or labels, together with its context
Term
context
Definition
tells who was measured, what was measured, how the data was collected, where the data were collected, and when and why the study was performed
Term
data table
Definition
an arrangement of data in which each row represents a case and each column represents a variable
Term
variable
Definition
a variable holds information about the same characteristic for many cases
Term
sample
Definition
the cases we actually examine in seeking to understand the much larger population
Term
population
Definition
all the cases we wish we knew about
Term
case
Definition
an individual about whom or which we have data
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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