Chapter 1

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15 Terms

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Cross-sectional data
Data collected at the same or \n approximately the same point in time
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Time series data
data collected over different time periods
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\
response variable
variable of interest, explanation variable, dependent variable
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Independent variables
Related to the variable of interest and will be measured
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Population
A set of all elements about which we wish to draw conclusions
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Census
An examination all of the population of measuremen
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Sample
A subset of the elements of a population
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Descriptive Statistics/ Statistical Inference
The science of describing the important aspects of a set of measurements
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Process
a sequence of operations that takes inputs and turns them \n into outputs
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Finite population
a population of limited size
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Infinite population
a population of unlimited size
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Nominative
A qualitative variable for which there is no meaningful ordering, or ranking, of the categories
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Ordinal
A qualitative variable for which there is a meaningful ordering, or ranking, of the categories
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Ratio
Quantitative data with differences between measurements, true zero exists
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Interval
Can only meaningfully compare values by the interval between them, not true zero