Which term means 'A characteristic or constant factor, limit'?

• A. Otic
• B. Pathogenic
• C. Posterior
• D. Parameter

Answer: (D)

A parameter is a fixed value that defines or characterizes a system, model, or population. It represents a constant factor or limit that sets the context for analysis. In practice, a parameter might be the true mean of a population or the rate in a model, values that stay the same within the scenario you’re studying. In contrast, data you collect from a sample produce statistics, which are used to estimate the underlying parameter. This distinction helps explain why the term that means a characteristic or constant factor, limit fits best here. The other terms relate to specific body parts (otic), disease-causing agents (pathogenic), or location (posterior), not to a defining constant value.