Data (Abstract) Math Example 3
Follow the full solution, then compare it with the other examples linked below.
Example 3
easyClassify each variable: (a) blood type (A, B, AB, O), (b) temperature in Celsius, (c) jersey number, (d) number of goals scored.
Solution
- 1 (a) Blood type: categorical — no numeric meaning to letters
- 2 (b) Temperature in Celsius: quantitative continuous — arithmetic is valid
- 3 (c) Jersey number: categorical — identifies a player, arithmetic meaningless
- 4 (d) Goals scored: quantitative discrete — countable whole numbers with arithmetic meaning
Answer
Categorical: blood type, jersey number. Quantitative: temperature (continuous), goals scored (discrete).
Even if a variable appears as a number (jersey numbers), context determines its type. Always ask: 'Is arithmetic on this variable meaningful?' If averaging jersey numbers is nonsensical, the variable is categorical.
About Data (Abstract)
Data is a collection of recorded observations or measurements used to describe, analyze, or make inferences about a phenomenon or population.
Learn more about Data (Abstract) →More Data (Abstract) Examples
Example 1 easy
A researcher records the following about 5 students: name, age, GPA, and favorite color. Classify ea
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