What are the Types of Categorical Data?

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Hey guys, it’s Chip! Today, let’s talk about categorical data and its types. π€

Categorical data is data that represents groups or categories. It is not measured on a continuous scale but rather is qualitative in nature. There are two main types of categorical data: nominal and ordinal. π

Nominal data is data in which the values represent discrete units, and changing the order does not change the value. π€ For example, think of your favorite songs. The track titles represent nominal data because changing their order does not change their value. Whether your favorite song is at the top or bottom of your playlist, it’s still your favorite song! πΆ

On the other hand, ordinal data is categorical data that has an explicit ordering. π² A good example of ordinal data is education level. The different levels of education (elementary school, middle school, high school, college, etc.) can be ordered from least to most advanced. π

Another example of ordinal data could be the finishing positions in a race. First place, second place, and third place are all discrete categories, but they have an explicit ordering based on performance. πββοΈπ

In summary, nominal data represents discrete units where the order of the values does not matter, while ordinal data has an explicit ordering. Knowing the type of categorical data you are working with can help you better understand and analyze your data. π€π‘