?Whenever a categorical variable such as season has k levels, the number of dummy variables required
A) ?k - 1
B) ?k
C) ?k + 1
D) ?2k

Name: ?Whenever a categorical variable such as season has k levels, the number of dummy variables required A) ?k - 1 B) ?k C) ?k + 1 D) ?2k
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Question

Quizplus · Accepted Answer

To represent a categorical variable with k levels, k - 1 dummy variables are needed to avoid multicollinearity and to provide a baseline category.

?Whenever a Categorical Variable Such as Season Has K Levels