Question

chegg If X and Y are categorical variables, the best way to determine if there is a relation between them is to Question 5 options: a) calculate the correlation between X and

Answer 1

If both variables are categorical. We analyze an association through a comparison of conditional probabilities and graphically represent the data using contingency tables (Two-way table).

We have to make the two - way table of the X and Y values.

What is categorical variables ?

• A categorical variable (also known as a qualitative variable) in statistics is a variable that may take one of a restricted, and typically fixed, number of potential values, allocating each human or other unit of observation to a specific group or nominal category based on some qualitative feature.
• Some variables can be said to be categorical, or they can be treated as such based on the length of their unique values.
• For example, if a variable contains only unique values [-2,4,56], you may consider it categorical.
• Every unique value in every category variable will result in the creation of a new column.

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