DATABASE FUNDAMENTALS
TYPES OF DATA
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Nominal
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Ordinal
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Either A or B
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None of the above
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Detailed explanation-1: -Nominal: Used to categorize data into mutually exclusive categories or groups. Ordinal: Used to measure variables in a natural order, such as rating or ranking.
Detailed explanation-2: -Ordinal data is data that can be ranked or ordered. Examples include data taken from a poll or survey. Nominal data is data that can be made to fit various categories. Examples include whether an animal is a mammal, fish, reptile, amphibian, or bird.
Detailed explanation-3: -Examples of ordinal variables include: socio economic status (“low income”, ”middle income”, ”high income”), education level (“high school”, ”BS”, ”MS”, ”PhD”), income level (“less than 50K”, “50K-100K”, “over 100K”), satisfaction rating (“extremely dislike”, “dislike”, “neutral”, “like”, “extremely like”).
Detailed explanation-4: -Nominal data are used to label variables without any quantitative value. Common examples include male/female (albeit somewhat outdated), hair color, nationalities, names of people, and so on.