CREATE TABLE player (HS INTEGER, pID VARCHAR(255)); CREATE TABLE tryout (pID VARCHAR(255), decision VARCHAR(255))
Find the average and maximum hours for the students whose tryout decision is yes.
    
SQL: SELECT AVG(T1.HS), MAX(T1.HS) FROM player AS T1 JOIN tryout AS T2 ON T1.pID = T2.pID WHERE T2.decision = 'yes'