The list Class_grades contains the grades of 2 students in Midterm 1, Midterm2 and Final Exam. Write a python program to find and display the average score of each student in the course. Class_grades-[[84,39],[67,88],[73,60]] #[[ Midterm1],[Midterm2],[Final]] Average for two students calculated as: 74.67 62.33 Write a general program considering that the number of students may vary.