Final answer:
Marketing input data refer to the resources used for marketing efforts, while marketing outcome data refer to the results of these efforts like sales and market share.
Step-by-step explanation:
Marketing input data relate to the resources invested in marketing activities, such as time, money, and labor. On the other hand, marketing outcome data relate to the results derived from the marketing activities, such as sales figures, market share, and customer engagement levels. Essentially, input data help in understanding what is being put into the marketing process, while outcome data provide insights into the effectiveness of those marketing efforts.