The regression equation for a categorical variable with four categories would be modeled as ________
A) ? i = a + b1 D1 + b2 D2 + b3D3
B) ? i = a + b1 D1 + b2 D2 + b3D3 + b4D4
C) ? = b1 D1 + b2 D2 + b3D3
D) ? = b1 D1 + b2 D2 + b3D3 + b4D4
A
Business
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