[Objective: Interpret the Coefficient of Determination in Context

question 58

Multiple Choice

[Objective: Interpret the coefficient of determination in context.] Suppose the correlation coefficient describing how the heights of teenage boys predicts their weights is 0.85. What is the coefficient of determination and what does it mean in context?

• A) of the variation in heights of teenage boys can be explained by their weight.
• B) of the variation in weights of teenage boys can be explained by their height.
• C) is 0.85 .85% of the variation in heights of teenage boys can be explained by their weight. d. is 0.85 .85% of the variation in weights of teenage boys can be explained by their height.

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Definitions:

Antioxidants

Substances that can prevent or slow damage to cells caused by free radicals, thereby protecting the body from certain diseases.

Free Radicals

Unstable molecules with unpaired electrons that can cause damage to cells, proteins, and DNA, contributing to aging and various diseases.

Cancer

A group of diseases characterized by the uncontrolled growth and spread of abnormal cells in the body.

Heart Attacks

A medical condition caused by the blockage of blood flow to the heart muscle, often resulting in chest pain and potentially fatal if not treated promptly.