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3446068
Statistics
Description
Chapter 1
No tags specified
statistics
types of variables
variables
Mind Map by
Joanmery Almodovar
, updated more than 1 year ago
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Created by
Joanmery Almodovar
almost 9 years ago
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Resource summary
Statistics
The methods that help transform data into useful information for decision makers.
Variable Types:
Categorical Variables (Qualitative variables)
Have values that can only be placed into categories such as yes and no.
Measurement Scales
Nominal Scale: classifies data into distinct categories in which no ranking is implied.
Ordinal Scale: classifies values into distinct categories in which ranking is implied.
Numerical Variables (Quantitative variables)
Have values that represent quantities.
Discrete variables: have numerical values that arise from a counting process.
Continuous variables: produce numerical responses that arise from a measuring process.
Measurement Scales
Interval Scale: is an ordered scale in which the difference between measurements is a meaningful quantity but does not involve a true zero point.
Ratio Scale: is an ordered scale in which the difference between the measurements involves a true zero point.
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