How does the Scrum Master serve the Scrum Team?

 The Scrum Master serves the Scrum Team by coaching them and the organization how to work empirically, which means using an evidence-based approach to inspect and adapt the product and the process1. The Scrum Master also facilitates Scrum events as requested or needed, such as the Sprint Planning, the Daily Scrum, the Sprint Review, and the Sprint Retrospective2. The Scrum Master ensures that these events are positive, productive, and kept within the timebox2.

The Scrum Master does not resolve every impediment that the Developers run into, but rather helps them to remove or overcome those impediments themselves3. The Scrum Master also does not never intervene in matters of the Scrum Team, but rather balances between providing guidance and allowing autonomy. The Scrum Master is not a passive observer, but an active servant leader who supports the team in achieving their goals.

References:

What is a Scrum Master?| Scrum.org, section “The Accountabilities of the Scrum Master”

The Scrum Guide 2020, section “The Scrum Master”

What is a scrum master?[+ Responsibilities] | Atlassian, section “Scrum master responsibilities”

[The 8 Stances of a Scrum Master by Barry Overeem], section “The Servant Leader”

[What Is a Scrum Master (and How Do I Become One)? - Coursera], section “What is a scrum master?”