What is the probability scale used in ORM risk assessments?

The probability scale used in ORM risk assessments includes the terms Rare, Possible, Unlikely, Likely, and Almost Certain. This classification provides a structured way to evaluate and communicate the likelihood of various risks occurring.

Each term captures a level of probability that corresponds to specific numerical probabilities, helping teams to prioritize risks and determine the necessary mitigation measures. For instance, 'Rare' signifies a very low likelihood of occurrence, while 'Almost Certain' indicates a high likelihood. This scale is essential for making informed decisions about risk management strategies in Navy operations, ensuring that resources are allocated appropriately and that potential issues are effectively addressed before they impact operations.

The other options do not align with the standardized terminology used in ORM, which can lead to confusion when assessing risk levels and determining a cohesive approach to mitigating them. Therefore, understanding this scale is crucial in ORM practices to ensure effective operational planning and execution.