Three Qualitative Variables Need to Be Incorporated into a Regression

question 104

True/False

Three qualitative variables need to be incorporated into a regression model. The first variable has 5 possible categories, the second one has 3 possible categories, and the third one has 2 possible categories. Based on this information, ten dummy variables need to be included in the regression model.

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Definitions:

Sodium/Potassium Pump

A membrane protein that moves sodium ions out of cells and potassium ions into cells against their concentration gradients, essential for cellular function.

Pinocytosis

Process by which vesicle formation brings macromolecules into the cell.

Exocytosis

Process in which an intracellular vesicle fuses with the plasma membrane so that the vesicle’s contents are released outside the cell.

Endocytosis

Process by which substances are moved into the cell from the environment; includes phagocytosis, pinocytosis, and receptor-mediated endocytosis.