The risk manager is performing a qualitative risk analysis by prioritizing risks based on their probability of occurrence. Qualitative risk analysis involves evaluating and prioritizing risks based on their likelihood and impact using a predefined scale. This approach helps in determining which risks require more attention and should be subjected to further analysis or immediate action.

PMI defines qualitative risk analysis as a process that uses a relative scale to assess the probability and impact of risks, which is what is being done in this scenario.