A Least Squares Line of Regression Has Been Fitted to a Scatterplot;

question 79

Multiple Choice

A least squares line of regression has been fitted to a scatterplot; the model's residuals plot is
Shown.
Which is true?

• A) The linear model is poor because the correlation is near 0.
• B) The linear model is appropriate.
• C) A curved model would be better.
• D) The linear model is poor because some residuals are large.
• E) none of these

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Definitions:

Cardiovascular Disease

A general term for conditions affecting the heart and blood vessels, such as coronary artery disease, heart attack, and stroke.

Gum Disease

A set of inflammatory conditions affecting the tissues surrounding the teeth, which can lead to loss of teeth if untreated.

Diabetes

A chronic disease that affects the way the body processes blood sugar (glucose), characterized by high blood sugar levels over a prolonged period.

Mortality Rate

A measure of the frequency of occurrence of death in a defined population during a specified interval.