Contingency tables 24 Characteristics: PoD= Prefigurance or probability of detection , hit rate Sensitive only to missed events, not false alarms Can always be increased by overforecasting rare events FAR= False alarm ratio Sensitive only to false alarms, not missed events Can always be improved by underforecasting rare events range: 0 to 1 best score = 1 range: 0 to 1 best score = 0 Forecasts Observations
{}