Final answer:
The phrase "Quality Is Free" is attributed to Philip B. Crosby, who was an influential figure in the field of quality management.
Step-by-step explanation:
The phrase "Quality Is Free," which suggests that the costs associated with poor quality products or services have been underestimated, is attributed to Philip B. Crosby. Crosby, an influential figure in the quality management field, argued that investing in quality is less expensive than dealing with the consequences of poor quality. He made this argument to convey that preventing defects or issues before they occur, rather than addressing them after the fact, saves money and resources in the long run.