1
Exam 2 Report 11/08/2017
1. Summary
Total number of students 18
Attended 18
Missed 0
Number of problems 3
Average grade 80.69
Standard deviation of grades 11.02
2. Grade distribution
3. Comparison with past years
0 0 1
0
2 3
10
2 0
2 4 6 8 10 12
0-30 30-40 40-50 50-60 60-70 70-80 80-90 90-100
Number of Students
Grade
Total Grade Distribution
80.69 83.17 82.45 85.1 81.92 82.99 85.81 81.24
11.02 8.58 11.97 12.31 13.36 9.54 10.93 14.91
0.00 10.00 20.00 30.00 40.00 50.00 60.00 70.00 80.00 90.00 100.00
2017 2016 2015 2014 2013 2012 2010 2009
Grade
Year
Comparison with Previous Years
Average Standard Deviation Average Over 2009-2017
2 4. Individual problem breakdown
5. Grade distribution per problem
8.08 8.42
7.71
1.61 1.37 1.20
0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00
1 2 3
Grade
Problem
Individual scores per problem
Average
Standard Deviation
0 0
2
1
0
2
9
4
0 1
0 0
2 2
10
3
0 0 0
2
5 5
4
2
0 2 4 6 8 10 12
0-3 3-4 4-5 5-6 6-7 7-8 8-9 9-10
Number of Students
Grade
Grade distribution per problem
P1 P2 P3
3 6. Comments
OVERALL
• All students followed the rules for the formula sheet.
PROBLEM 1
• Many students made mistakes when calculating the cross product for angular momentum calculation
PROBLEM 2
• Some students used momentum equation in the angular direction instead of z-direction.
• Many student made mistakes when integrating governing equation PROBLEM 3
• Many students did not setup the system of equation required to solve the parallel pipe system correctly
