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
[{'avg(T1.age)': 19.666666666666668, 'dorm_name': 'Anonymous Donor Hall'}, {'avg(T1.age)': 20.0, 'dorm_name': 'Bud Jones Hall'}, {'avg(T1.age)': 19.6, 'dorm_name': 'Dorm-plex 2000'}, {'avg(T1.age)': 19.77777777777778, 'dorm_name': 'Fawlty Towers'}, {'avg(T1.age)': 18.0, 'dorm_name': 'Grad Student Asylum'}, {'avg(T1.age)': 20.166666666666668, 'dorm_name': 'Smith Hall'}, {'avg(T1.age)': 18.0, 'dorm_name': 'University Hovels'}]