Astronomy 104:
Stellar Astronomy

Spring Semester 2009

Cabanela Lecture MidTerm #1 Results

The MidTerm #1 Solutoin Key can be examined online.

The 120 people who took the first Astronomy 104 midterm got an average score of 37.8/50 (corresponding to a B-/C+) with a standard deviation of 7.2. The high score was 48.5/50 and the low score was 10.5/50. For determining grades, I assumed a score of 48.5 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.

Enter your MDI:

The distribution of scores are shown in the plots below:

Histogram of Scores

Mid-Term #1 Score Percentiles


Roughly the following percentiles were seen:

Grades

Score

Percentage of Class

Percentile String

A

>=42.7

23.3%

76.7% (23.3% of the class got an 'A')

B

>=37.8

34.2%

42.5% (57.5% of the class got at least a 'B')

C

>=31.5

28.3%

14.2% (85.8% of the class got at least a 'C')

D

>=24.3

9.2%

5% (95% of the class passed)

F


5.0%