Developing products and promotions to please large groups of people is marketing.

Your statement is correct. Marketing indeed involves developing products and promotions to satisfy the desires and needs of large groups of people. It encompasses a variety of activities aimed at delivering the right products to the right markets at the right time.

1. Understanding the Market: This requires extensive research to understand consumer behaviors, preferences, and trends. Target audience segmentation plays a crucial role in this process.

2. Product Development: Marketers work on developing products that meet the identified needs of various groups. This can involve innovations, modifications, or entirely new product lines.

3. Promotional Strategies: To effectively reach large audiences, marketing strategies often include advertising campaigns, social media outreach, public relations, and promotions. The aim is to engage potential customers and persuade them of the product's value.

4. Feedback and Adaptation: Once products and promotions are launched, marketers must continuously gather consumer feedback to assess effectiveness and make necessary adjustments. This is vital for sustaining customer satisfaction and loyalty.

In summary, effective marketing is about creating value and building relationships with consumers through thoughtful product development and strategic promotion.