Question: Oftentimes, a categorical variable is defined by more than two categories. For example, the mode of transportation used to commute may be described by three

Oftentimes, a categorical variable is defined by more than two categories. For example, the mode of transportation used to commute may be described by three categories: Public Transportation, Driving Alone, and Car Pooling. Given k categories of a variable, the general rule is to create how many dummy variables? Multiple choice question. 1 k k-1 3

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