When people are asked the frequency of lethal events. they are often inaccurate. The following table lists those events most subject to under- or over-estimation of the frequency. Most overestimated Most underestimated All accidents Motor vehicle accidents Diabetes Tornadoes Stomach cancer Flood Stroke All cancer Tuberculosis Fire and ames Asthma Venomous bite or sting Emphysema Homicide What heuristic could lead to this pattern of overestimation and underestimation? Why