There's no way to tell that for certain. You can guess, based on the predicates in the query and the joins which ones will likely be used.
Or, if you have a test database somewhere, drop all the stats, run the query and then see which ones were created, but that won't help for index statistics.
Gail Shaw
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability
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