The Base Rate Fallacy is a cognitive bias that occurs when someone fails to take into account the probability of an event occurring based on the base rate of the population. This fallacy can lead to incorrect decisions or conclusions being drawn, as the individual may be overly influenced by other factors such as personal
From Wikipedia
The base rate fallacy, also called base rate neglect or base rate bias, is a type of fallacy in which people tend to ignore the base rate in favor of the information pertaining only to a specific case. Base rate neglect is a specific form of the more general extension neglect.