Which statement best describes the difference between risk and uncertainty?

Which statement best describes the difference between risk and uncertainty?

• A. Uncertainty involves known probabilities, while risk involves uncertain outcomes.
• B. Risk and uncertainty are identical concepts.
• C. Risk has known probabilities and consequences; uncertainty lacks reliable probabilities or knowledge about outcomes.
• D. There is no difference.

Answer: (C)

Distinguishing risk from uncertainty rests on whether you can quantify what might happen. Risk means you can attach probabilities to different outcomes and know their consequences, so you can quantify expected impact and plan accordingly. Uncertainty means you don’t have reliable probabilities or even clear knowledge about which outcomes could occur, so probabilities are unknown or undefined. In practice, risk can be analyzed with data and models to estimate likely results, while uncertainty requires judgment, scenario planning, and flexible strategies because the probabilities or possibilities aren’t reliably known. That’s why the statement describing risk as having known probabilities and consequences, and uncertainty as lacking reliable probabilities or knowledge about outcomes, is the best fit.

Distinguishing risk from uncertainty rests on whether you can quantify what might happen. Risk means you can attach probabilities to different outcomes and know their consequences, so you can quantify expected impact and plan accordingly. Uncertainty means you don’t have reliable probabilities or even clear knowledge about which outcomes could occur, so probabilities are unknown or undefined. In practice, risk can be analyzed with data and models to estimate likely results, while uncertainty requires judgment, scenario planning, and flexible strategies because the probabilities or possibilities aren’t reliably known. That’s why the statement describing risk as having known probabilities and consequences, and uncertainty as lacking reliable probabilities or knowledge about outcomes, is the best fit.