In General, to Represent a Categorical Independent Variable That Has

question 78

Multiple Choice

In general, to represent a categorical independent variable that has m possible categories, which of the following is the number of dummy variables that can be used in the regression model?

• A) (m + 1) dummy variables.
• B) m dummy variables.
• C) (1 − m) dummy variables.
• D) (m - 1) dummy variables.

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Definitions:

Club Mosses

Ancient group of non-flowering plants belonging to the class Lycopodiopsida, similar in appearance to true mosses but more closely related to ferns.

Lycopodium

A genus of clubmosses, ancient seedless vascular plants, used for various purposes including as flash powder in photography and fireworks.

Gametophytes

The haploid phase in the life cycle of plants and algae that produces gametes, crucial for sexual reproduction.

Mosses

Non-vascular plants that typically form dense green clumps or mats in moist environments.