Final answer:
The conversion rate is the marketing metric that signifies an event that occurs on a web page and indicates the meeting of a predefined goal associated with the consumer's interaction with that page.
Step-by-step explanation:
The marketing metric that signifies an event that occurs on a web page and indicates the meeting of a predefined goal associated with the consumer's interaction with that page is the conversion rate. The conversion rate measures the percentage of visitors who complete a desired action, such as making a purchase or filling out a form, on a website. It is an important metric for marketers to track as it indicates the effectiveness of their marketing efforts in driving desired consumer behavior.