Midterm exam solutions

A copy of the midterm exam is found here and sample solutions are found here.

You could obtain 6 points for each problem, making up a total of 30 points. Marta and I have both gone through the answers and then agreed on grades. The grading scale used was: A: 85-100% (out of the 30 points), B: 70-85%, C: 55-70%, D: 40-55, E: 25-40%, F: below 25%.