If a Categorical Variable Is to Be Included in a Multiple

question 30

True/False

If a categorical variable is to be included in a multiple regression,a dummy variable for each category of the variable should be used,but the original categorical variables should not be used.

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Definitions:

CT Scans

A medical imaging procedure that uses computer-processed combinations of many X-ray measurements taken from different angles to produce cross-sectional images of specific areas of a scanned object, allowing the user to see inside the object without cutting.

Gray Matter

Areas of the nervous system composed predominantly of neuronal cell bodies that collect and modify information and capillary blood vessels that support this activity.

White Matter

Areas of the nervous system with fat-rich, myelin-sheathed neuronal axons that form the connections between neurons.

CT Scans

Imaging procedure that utilizes X-rays to create cross-sectional images of the body, including the brain, allowing for the diagnosis of injuries, diseases, and abnormalities.