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The classification of the student class designation(freshman, sophomore, junior, senior) is an example of a categorical variable.
What is a categorical variable?
Assigning each person or other unit of observation to a specific group or nominal category based on some qualitative property is known as categorizing a variable in statistics. Categorical variables have a finite, and typically fixed, number of possible values. Enumerations or enumerated types are terms used in computer science and some subfields of mathematics to describe categorical variables. Every one of a categorical variable's potential values is referred to as a level informally (though not in this article). The term "categorical distribution" refers to the probability distribution corresponding to a random categorical variable. Categorical data is a type of statistical data that consists of categorical variables or data that has been transformed into that form, such as grouped data.
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