Final answer:
To maximize profit, Watershed should offer the promotion to the customers with the highest estimated unsubscribe probability.
Step-by-step explanation:
To determine how many customers Watershed should offer the promotion to maximize profit, you need to consider the cost of offering the promotion and the potential revenue gained from retaining customers. Follow these steps:
- Sort the customers in descending order based on the estimated unsubscribe probability.
- Calculate the profit for each customer by subtracting the cost of the promotion.
- Determine the customer offering sequence by selecting customers from the sorted list until the cumulative profit is maximized. For example, if offering the promotion to the top three customers results in the highest cumulative profit, then Watershed should offer the promotion to those three customers.