A Fitted Multiple Regression Model Yields an R² of 0

question 6

Multiple Choice

A fitted multiple regression model yields an R² of 0.64.Interpret this value.

• A)64% of the independent variables used in the regression model are highly correlated and may falsely suggest a curvilinear relationship exists between x and y when the true relationship is linear.
• B)64% of the variation in the observed value of the dependent variable is explained by the regression model.
• C)The correlation between each pair of independent variables is 0.8 or -0.8.
• D)The fitted model predicts the dependent variable accurately 64% of the time.
• E)64% of the independent variables in the model are capable of accurately predicting the dependent variable.

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Definitions:

Topical

Pertaining to application on a particular area of the skin or body surface for local treatment.

Transdermal

A reiteration, largely pertaining to drug delivery systems that release medication through the skin into the bloodstream.

Subcutaneous

Relating to or located beneath the skin's surface.

Intrathecal

Pertaining to the administration of drugs or other substances directly into the space under the arachnoid membrane of the brain or spinal cord.