Agile Scrum Software Development Process

Want to know best options for estimating the Story Points on Agile Scrum Process? Check our experts and their responses.

In a Agile Scrum Process, what are best practices of estimating Story Points.
I know, it should not be based on the efforts, which is required to Develop and Test Stories.
Consider the point that the team is a combination of fresh graduates and experience team members.

Any suggestions?