Astronomy 104:
Stellar Astronomy

Spring Semester 2009

Cabanela Lecture MidTerm #2 Results

The MidTerm #2 Solutoin Key can be examined online.

The 116 people who took the second Astronomy 104 midterm got an average score of 35.8/50 (corresponding to a C+) with a standard deviation of 7.1. The high score was 48/50 and the low score was 15/50. For determining grades, I assumed a score of 48 was 100% on this exam.

To access your scores, enter your modified Dragon ID (MDI). Your MDI consists of the last 4 digits of your Dragon ID plus the middle initial of your name (if available). Try first with the middle initial. If your score doesn't come up, try just the last 4 digits of your Dragon ID. If it still doesn't come up, check with your lecturer.

GRADING NOTE: Question 21 of the mulitple choice was dropped, so I ADDED 1 POINT to your multiple choice score presented here when computing your final exam grade.
Enter your MDI:

The distribution of scores are shown in the plots below:

Histogram of Scores

Mid-Term #2 Score Percentiles


Roughly the following percentiles were seen:

Grades

Score

Percentage of Class

Percentile String

A >=42.2 19.0% 81% (19% of the class got an 'A')
B >=37.4 27.6% 53.4% (46.6% of the class got at least a 'B')
C >=31.2 31.0% 22.4% (77.6% of the class got at least a 'C')
D >=24.0 13.8% 8.6% (91.4% of the class passed)
F   8.6%