How Many New Variables Should Be Created for a Multiple

question 26

Multiple Choice

How many new variables should be created for a multiple regression model where data are always available for y and x₁, x₂, ..., x_k−1 but are sometimes missing for the explanatory variable x_k?

• A)​One variable
• B)​Two variables
• C)​Three variables
• D)​Four variables

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Definitions:

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Individuals residing in the United States who are of European descent, one of the various ethnic groups in the country.

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An ethnic group in the United States with ancestry in the black racial groups of Africa.

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Periodic publications issued by the U.S. Surgeon General that cover important public health issues, providing comprehensive information based on evidence and research.