Answer:
measurable
Step-by-step explanation:
Market segmentation is important because it allows companies to reach their customers in a more specific way depending on their needs. Market segmentation divides large markets into smaller markets that share similar characteristics, but in order for that division to be made, the market's size and purchasing power must be measurable.
For example, the needs of X% of rich families living in the suburbs will be very different from those of Y% of young single low income workers living on apartments downtown.