Final answer:
The representativeness heuristic can easily lead to stereotypes as it relies on preconceived notions and overlooks individual differences.
Step-by-step explanation:
The heuristic that can easily lead to stereotypes is the representativeness heuristic. This heuristic is a mental shortcut where we judge the likelihood of an event based on how closely it matches our existing mental prototype or stereotype. For example, if we see someone wearing glasses, we may stereotype them as being intelligent, even though wearing glasses does not necessarily indicate intelligence. This heuristic can lead to stereotypes because it relies on our preconceived notions and may overlook individual differences.