Roles of Scrum Master?

I am posting the roles of Scrum Master in Agile process below,

1. To educate the Product Owner in regard to maximize the return on speculation and meet his/her destinations through the Scrum process.
   
2. Facilitates improvement in the team's creativity and empowerment.
   
3. Improves the efficiency of the Software developers.
   
4. Improves the engineering practices and instruments to increase functionality in a Software
   
5. Keeps informed to Team up to date regarding the progress and guarantees that it is visible to all parties.