Final answer:
Marketers want to quantify how effective their programs are to show that they increase profits and to make informed decisions about their strategies.
Step-by-step explanation:
One reason marketers want to quantify how effective their programs are is to show that they increase profits. The other reason marketers want to quantify their effectiveness is to make informed decisions about a parameter or strategy. For instance, measuring program effectiveness can help marketers identify which strategies are working and which ones are not, enabling them to make adjustments or allocate resources more effectively.