AI ASSIGNMENT 1 
				       
				       X
                                       X
                                       X
                                       X
                                       X
                                       X
            number of                  X
            homeworks          X       X
                       X       X       X
                       X       X       X
                       X   X   X X   X X
                   ----------------------
                   0 1 2 3 4 5 6 7 8 9 10
                           grades

The histogram shows the distribution of grades, from 0 to 10.