Studies of the "Wisdom of Crowd" Effect Suggest That

Multiple Choice

Studies of the "wisdom of crowd" effect suggest that

A) groups are particularly effective when working on extremely difficult problems.
B) once the group reaches 5 members,it reaches its maximum level of "wisdom".
C) making decisions by averaging individuals judgments is,in some cases,both efficient and accurate.
D) the "crowd" members,to become accurate,must initially discuss the issue among members.