In Linear Regression, a Dummy Variable Is Used

question 17

Multiple Choice

In linear regression, a dummy variable is used:

• A) to represent residual variables
• B) to represent missing data in each sample
• C) to include hypothetical data in the regression equation
• D) to include categorical variables in the regression equation
• E) when "dumb" responses are included in the data

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Definitions:

Continental Drift

The theory suggesting that Earth's continents are in constant motion on the surface of the globe.

Geographic Isolation

The physical separation of populations of a species, leading to genetic divergence and potentially speciation, due to geographical barriers.

Changes In Sea Level

Variations in the global average sea level, typically caused by either thermal expansion of sea water as it warms or by the melting of ice over land.

Genetic Mutations

Changes in the DNA sequence of an organism's genome, which can lead to variation among species and individuals, with potential effects ranging from harmful to beneficial.