Which of the Following Statements About the Expiration Dates of Medications

question 39

Multiple Choice

Which of the following statements about the expiration dates of medications is TRUE?

• A)Medications should be disposed of on or before their expiration date.
• B)Expiration dates should be ignored;they are used by the manufacturer to increase sales.
• C)A study by the FDA found that 90 percent of all medications are potent several years after their stated expiration date.
• D)Medications don't ever lose their potency as long as they are sealed tight and stored in a cool,dry place.

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Definitions:

Backward Elimination

A stepwise regression technique where all predictors are included in the model initially, and then the least significant predictor is removed step-by-step until the best model is identified.

Forward Selection

A stepwise approach in model selection where variables are added one by one based on their statistical significance.

Best-subsets Regression

A statistical method that involves analyzing all possible combinations of variables to identify the model that best fits the data.

Independent Variables

Variables in an experiment or model that are manipulated or changed to assess their effects on dependent variables.