SELECT gender, university, COUNT(*) user_num, AVG(active_days_within_30) avg_active_day, AVG(question_cnt) avg_question_cnt FROM user_profile GROUP BY gender, university ;
SELECT gender, university, COUNT(*) user_num, AVG(active_days_within_30) avg_active_day, AVG(question_cnt) avg_question_cnt FROM user_profile GROUP BY gender, university ;