Which Is True? I. Random Scatter in the Residuals Indicates a Model with a Model

question 21

Multiple Choice

Which is true?
I. Random scatter in the residuals indicates a model with high predictive power.
II. If two variables are very strongly associated, then the correlation between them will be near +1.0
Or -1.0.
III. The higher the correlation between two variables the more likely the association is based in
Cause and effect.

• A) I, II, and III
• B) I and II
• C) I only
• D) II only
• E) none

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Definitions:

Benadryl

Benadryl is an over-the-counter medication commonly used to treat symptoms of allergies, such as sneezing, runny nose, and itching.

Epipen

A brand of auto-injector device designed to deliver a measured dose of epinephrine, commonly used to treat severe allergic reactions (anaphylaxis).

Metabolism

The set of chemical reactions that occur within a living organism to maintain life, involving the breakdown of substances to generate energy and the synthesis of substances necessary for life.

Nutrients

Essential compounds that organisms need to absorb from their surroundings or diet to support growth, reproduction, and health, including vitamins, minerals, proteins, fats, and carbohydrates.