If a categorical independent variable,such as gender,contains exactly two categories,then how many dummy variable(s)will be needed to uniquely represent these categories?
A)1
B)2
C)3
D)4

Question

Quizplus · Accepted Answer

Only one dummy variable is needed to represent a binary categorical variable such as gender, where one category is coded as 0 and the other as 1.

If a Categorical Independent Variable,such as Gender,contains Exactly Two Categories,then