1) In usage segmentation, it has been found that:

the heavy half segment often suffers from the highest rates of obesity.

the most important market segment is the nonusers in terms of market strategy.

a small percent of the market often accounts for a disproportionate amount of a product's sales.

usage of a product is never easy to determine in any one group, but it always varies by product type.

2) The value to segmenting only exists when:

it leads to a differential response among customers.

a company can identify a segment that is larger than any other segment.

a segment has unique health care needs.

a segment tends to have values that are different than other segments.