Exercise 2: Categorize these measurements associated with marathon running according to level: nominal, ordinal, interval, or ratio.

(a) age of participant

(b) state or country of residency

(c) finishing time

(d) finishing position (place)

(e) year of first marathon

Step 1: Identify nominal measurements.

In addition to categorizing data or variables as quantitative or qualitative, we can categorize based on the level of measurement. This type of categorization helps us know which type of arithmetic is appropriate for the data. Nominal measurements are categorical and are not able to be ordered.