Analyze Table or Rebuild Index; What should be first?

[rsuri]

For some performance issues I do Analyze the tables and Rebuild the indexes on a medium size database.
Some of the tables have 50 million+ rows.

I am wondering if it will Analyze the tables faster if I rebuild the indexes first or vice versa or does it not matter at all as both will have to scan the entire table anyway (for Compute Statistics)

Thanks,

- Rajeev