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Which of the columns represent nominal or ordinal variables?

The variable Rank is .
The variable Book is .
The variable Author(s) is .
The variable Language is .
The variable Year Published is .
The variable Sales is .
The variable Genre is .

1 answer

To determine whether each column represents a nominal or ordinal variable, we need to understand the definitions:

  • Nominal variables are categories without a specific order (e.g., Gender, Hair Color).
  • Ordinal variables have a meaningful order but no consistent difference between the categories (e.g., Rank, Satisfaction Ratings).

Here’s an analysis of each variable:

  1. Rank: Ordinal - This variable represents the position in a sequence or order (e.g., 1st, 2nd, 3rd), which indicates a hierarchy.

  2. Book: Nominal - This variable represents different book titles, which are categories without any inherent order.

  3. Author(s): Nominal - This variable consists of names of authors, which are categories without any specific order.

  4. Language: Nominal - This variable represents different languages, which are categories with no inherent order.

  5. Year Published: Ordinal - While years are numerical values, they can be treated as categories with an order (before and after), indicating a sequential timeframe.

  6. Sales: Neither nominal nor ordinal – This variable is quantitative and represents numerical values (e.g., number of copies sold), which do not fit within these categories.

  7. Genre: Nominal - This variable represents different categories of books (e.g., Fiction, Non-Fiction) without any order.

In summary:

  • Rank: Ordinal
  • Book: Nominal
  • Author(s): Nominal
  • Language: Nominal
  • Year Published: Ordinal
  • Sales: (Quantitative, not nominal or ordinal)
  • Genre: Nominal