if a variable is a nominal and a continuous variable, how to represent it in a linear regression model? why is unit price a nominal variable what are nominal variable how to represent a country in a data set how do you represent a country in a regression model is country an ordinal variable what is data representation in logistic regression what is the difference between a nominal and an ordinal variable in a regression? how is a unit price related to the country what model can use the data that relates to country to the unit price which of the following is an example of a data model in which a nominal variable is used to represent a unit price? what data type is used to represent data in regression when the unit price of a product is determined in the form of country a variable is used to how to model unit price in a data model what variable can be used to describe unit price in a regression model? how to show how country affects unit price how should a nominal variable be represented in a data model how do you represent the data in a linear regression model? why is model representation an important feature of a data set? which variable in the data format will affect the unit price