Task: Text to Code
Input (English): Step 1: For each row in Tryout table, find corresponding rows in College table and in Player table.
Step 2: find the average HS in the results of step 1 whose state equals no
Output (English): SELECT Avg ( T2.HS ) FROM College AS T1 JOIN Player AS T2 JOIN Tryout AS T3 ON T1.cName = T3.cName AND T3.pID = T2.pID WHERE T1.state = "no"