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