SELECT DISTINCT state FROM college AS T1 JOIN tryout AS T2 ON T1.cName  =  T2.cName
Find the states where have some college students in tryout.
SELECT DISTINCT state FROM college AS T1 JOIN tryout AS T2 ON T1.cName = T2.cName
select distinct state from college as t1 join tryout as t2 on t1 . cname = t2 . cname
Find the states where have some college students in tryout .