Answer: Representativeness heuristic
Explanation:
Representativeness heuristic is defined as the reaching towards the similar items and things to organizing them into grouping of prototype.It helps in organizing and computing the elements easily.
According to the situation, Craig is giving the opinion or idea about people of New Zealand on basis of category prototype as he though Karl is funny and friendly so other people of New Zealand would have similar feature even though he did not meet several people.Thus, Craig is using repressiveness heuristic for assembling people of New Zealand as being represented by Karl.
