SELECT avg(T1.age) ,  T3.dorm_name FROM student AS T1 JOIN lives_in AS T2 ON T1.stuid  =  T2.stuid JOIN dorm AS T3 ON T3.dormid  =  T2.dormid GROUP BY T3.dorm_name
Find the average age of students living in each dorm and the name of dorm.
SELECT avg ( T1.age ) , T3.dorm_name FROM student AS T1 JOIN lives_in AS T2 ON T1.stuid = T2.stuid JOIN dorm AS T3 ON T3.dormid = T2.dormid GROUP BY T3.dorm_name
select avg ( t1 . age ) , t3 . dorm_name from student as t1 join lives_in as t2 on t1 . stuid = t2 . stuid join dorm as t3 on t3 . dormid = t2 . dormid group by t3 . dorm_name
Find the average age of students living in each dorm and the name of dorm .