Which of the following are nominal data and which are ordinal data? (a) The iden

Question

Which of the following are nominal data and which are ordinal data? (a) The identification numbers painted on the bows of Navy battleships sailing 1.2 with a fleet (b) The gold, silver, and bronze medal winners of an Olympic athletic contest where the gold medal is awarded for first place, the silver medal is awarded for second place, and the bronze medal is awarded for third place (c) The Social Security numbers of a group of factory workers (d) Coding of the faculty of a university, for use in a computer analysis, by rank if 1 represents professor, 2 represents associate professor, 3 represents assistant professor, and 4 represents instructor Numbering of horses at the conclusion of a race to indicate which horse crossed the finish line first, second, and third The numbers displayed on the uniforms of major league baseball players who are members of the Arizona Diamondbacks team (e) (f)

Explanation / Answer

(a) nominal (b) ordinal (c)nominal (d) ordinal (e) nominal (f) nominal

A categorical variable (sometimes called a nominal variable) is one that has two or more categories, but there is no intrinsic ordering to the categories.For example, gender is a categorical variable having two categories (male and female) and there is no intrinsic ordering to the categories.

An ordinal variable is a categorical variable for which the possible values are ordered. e.g

Educational level might be categorized as
    1: Elementary school education
    2: High school graduate
    3: Some college
    4: College graduate
    5: Graduate degree

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