What Is Wrong with the 80-20 Scheme

Multiple Choice

What is wrong with the 80-20 scheme?

A) It is too broad to segment customers in this way
B) Customers who are labelled could change and future advertising misses them
C) It does not consider the differences among the 80 percent in the "rest" segment
D) It does not consider the differences between 80 percent and the 20 percent
E) It does not break down the variables within the remaining 20 percent