An Independent Variable Should Be Removed to Improve the Regression

question 18

Multiple Choice

An independent variable should be removed to improve the regression model if ________.

• A)the correlation coefficient is -1
• B)the R² value is 1
• C)the t-statistic is lesser than 1
• D)the p-value is greater than 0.05

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Definitions:

White Matter

A component of the central nervous system consisting of glial cells and myelinated axons that facilitates communication between different brain regions.

Myelin

A fatty substance that surrounds and insulates the axons of some neurons, enhancing the speed at which nerve signals travel.

Cerebrospinal Fluid

A clear, colorless body fluid found in the brain and spinal cord, which acts as a cushion for the brain's cortex, providing basic mechanical and immunological protection.

Somatic Nervous System

A part of the peripheral nervous system that is responsible for carrying motor and sensory information both to and from the central nervous system.