The "20- 80 rule," as the term generally is used in marketing research, means:
A) predictions about brand usage are correct 20 percent of the time, incorrect 80 percent of the time
B) about 20 percent of the world's total consumption of products is by the U.S. and the remaining 80 percent represents the rest of the countries' consumption
C) about 20 percent of a product's users account for 80 percent of the volume sold
D) about 20 percent of buyers use coupons or special offers for 80 percent of their purchases
E) about 20 percent of consumers are brand loyal and 80 percent buy various brands as a matter of course

Question

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The "20-80 rule," also known as the Pareto Principle, in marketing suggests that roughly 20% of a product's users are responsible for 80% of the sales volume.

The "20- 80 Rule," as the Term Generally Is Used