Answer:
The answer is representativeness heuristic.
Explanation:
This heuristic (mental shortcut) occurs when people make an assumption of a individual case, based on other similar cases. It may lead to stereotyping, because it relies on preconceived mental images of a larger group.
The concept is often found in criminal judgements. Research has found that an angry or menacing-looking person is more likely to be found guilty, as it is the idea most people have about criminals.