Data Measurement and Classification (Data Presentation and Analysis) Flashcards Preview

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Flashcards in Data Measurement and Classification (Data Presentation and Analysis) Deck (4)
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1

Nominal

Categorical data, classifies into numbers, letters, or text strings
Qualitative-no mathematical operations can be performed only equality or inequality can be determined

2

Ordinal

Rank, Least to most or most to least. Weakly quantitative
Magnitude of difference is unknown

3

Interval

Numerical scales in which intervals are known and have the same interpretation throughout

4

Ratio

Same as interval, but magnitude of distance is absolute, with a known and meaning starting point of zero such as kelvin degree, quantitative- permits most sophisticated statistical tests, more common than interval data