A mathematical model is considered to be "valid" when
A) it accurately represents the relevant characteristics of the object or decision.
B) it has passed a validation test.
C) it replicates all aspects of the object or decision.
D) the left-hand and right-hand sides of expressions are equal.

Question

Quizplus · Accepted Answer

A valid mathematical model accurately represents the relevant characteristics of the object or decision, meaning it is a useful and reliable tool for making predictions or decisions. Validation tests can help confirm the model's accuracy, but passing such a test is not the only criteria for validity. Replicating all aspects of the object or decision is often not possible or necessary, as the model focuses on specific aspects of the system that are most important for the purpose at hand. Equality between left-hand and right-hand sides of expressions is a necessary condition for mathematical correctness, but again, it alone does not ensure validity or usefulness of a model.

A Mathematical Model Is Considered to Be "Valid" When