Question

which of the following represents categorical data? student id 715158 119962 488754 170245 294580 457415 105487 823954 truck value (in dollars) 31,525 11,479 28,005 31,789 29,850 45,581 19,988 22,325 hair length (in inches) 9.87 12.51 10.75 2.85 21.95 26.04 12.01 35.99 car weight (in tons) 2 1.7 0.9 1.8 2.1 2.8 1.5 2.3

Explanation:

Categorical data is used to label or categorize groups, and it has no numerical meaning for arithmetic operations. Student ID is used to identify students (a category) and the numbers don't represent quantities for calculation (unlike the numerical values in Car Weight, Hair Length, or Truck Value which are quantitative and used for measurement/value). Hair Length, Car Weight, and Truck Value are quantitative (numerical, measurable/have value meaning). So Student ID is categorical.

Answer:

Student ID (with values like 715158, 119962, etc.) represents categorical data.