Asingle, memorable case of welfare fraud has a greater impact on estimates of the frequency of welfare abuse than do statistics showing that this case is actually the exception to the rule. this illustrates that judgments are influenced by the

a. confirmation bias.
b. representativeness heuristic.
c. belief perseverance phenomenon.
d. framing effect.
e. availability heuristic

a. confirmation bias

Explanation:

Confirmation bias is tendency to select or recall information in a way that confirms or strengthens one's prior personal beliefs or hypotheses- a sort of cognitive bias. This is seen in people that prefer to select information and not judge based on all information. In this way effect is stronger for "desired outcomes". Emotional people are more prone to this type of judgement.

answer; i believe the two groups were irish immigrants and chinese immigrants;