Alex and Barbara Are Asked to Estimate the Size of a Crowd

Multiple Choice

Alex and Barbara are asked to estimate the size of a crowd. Alex is asked whether the crowd is bigger or smaller than 10,000, whereas Barbara is asked whether the crowd is bigger or smaller than 2,000. The fact that Alex would give a larger estimate could best be explained by

A) the representativeness heuristic.
B) mental set.
C) the anchoring bias.
D) self-imposed limitations.
E) cognitive maps.