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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Interval
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Ratio
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Detailed explanation-1: -What is the nominal level? The nominal level is the first level of measurement, and the simplest. It classifies and labels variables qualitatively. In other words, it divides them into named groups without any quantitative meaning.
Detailed explanation-2: -Examples of nominal scales include gender, marital status, college major, and blood type.
Detailed explanation-3: -The year of birth variable should be measured on an interval scale because year of birth is an ordered data and the difference between any two years is same in significance.
Detailed explanation-4: -In ordinal measurement the attributes can be rank-ordered. Here, distances between attributes do not have any meaning. For example, on a survey you might code Educational Attainment as 0=less than high school; 1=some high school.; 2=high school degree; 3=some college; 4=college degree; 5=post college.