Average over the entire exam: 69.26

This shows marks distribution (number of marks in each range):

			[0, 25]=2
			(25,50]=12
			(50,75]=16
			(75,100]=11
			(100,125]=6
			(125,150]=3

Averages for each of the problems:

			#1=8.64
			#2=11.92
			#3=7.4
			#4=5.9
			#5=4.46
			#6=7.94
			#7=6.16
			#8=8.96
			#9=4
			#10=3.88