Physics 142 - Fall 2007 - University of Rochester
Physics of the Natural World
Mean best numerical average was 84
The Best Numerical Average (BNA) is your final average in the course where I have calculated it three different ways (see below). This is the distribution I used to determine letter grades in the course. A was >= 91, A- was from 86-90, B+ was from 80-85, B was from 74-79, B- was from 69-73. In calculating the averages below, I used your renormalized exam grades. That means I normalized the mean of each exam to 70. So, before calculating the averages below your exam 1 grade was multiplied by 70/67, since the mean of exam 1 was 67. For exam 2 the normalization factor was 70/80. For the Final exam the normalization factor was 70/70. You can verify the calculations from the information I provide for you on BlackBoard.
Scheme
Exam 1
Exam 2
Final exam
Lab
Prob sets
Project
1
20%
20%
21%
15%
9%
15%
2
0%
30%
31%
15%
9%
15%
3
30%
0%
31%
15%
9%
15%