Q2.3 Select DoctorID AVG(TotalBill) From Bill Group by DoctorlD Order by AVG(TotalBill);

The correct answer is:<br /><br />SELECT DoctorID, AVG(TotalBill)<br />FROM Bill<br />GROUP BY DoctorID<br />ORDER BY AVG(TotalBill);<br /><br />Explanation: This SQL query selects the DoctorID and the average TotalBill from the Bill table, groups the results by DoctorID, and orders the results by the average TotalBill in ascending order.