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ENCM 369 Winter 2002 Midterm Statistics and Approximate Letter Grades

This page is maintained by Steve Norman
Last modified: Mon Mar 18 14:03:16 MST 2002

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Statistics on test scores

These statistics are based on combined data from lecture sections L01 and L02. (Distributions of marks were very similar for the two sections.)

Here is a histogram of scores out of 59. Each digit in a bar of the bar graph is the last digit of a student's score. For example, the first line says that one student scored 58, three scored 56, and one scored 55. 

55-58| 86665
50-54| 444433333211110000
45-49| 999999988888887777766666655555555
40-44| 4444444443333333333322222221111100000000
35-39| 99999988888888888877777776666666665555
30-34| 4444443333222222221110000
25-29| 99999988776665
20-24| 44443221
15-19| 9
10-14| 3
Here are some statistics: 
number of papers marked: 183

highest score:         58 / 59
75th percentile score: 46 / 59 (this score is better than 3/4 of the scores)
median score:          40 / 59 (this score is better than 1/2 of the scores)
25th percentile score: 34 / 59 (this score is better than 1/4 of the scores)

average score:       39.8 / 59
standard deviation:  8.6 points

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Unofficial, approximate letter grade equivalents

These are UNOFFICIAL, and apply only to the mid-session test. We do NOT promise to use the same scale when we convert your overall course score to a letter grade.

None of the questions were really, really hard, but time pressure was a serious problem, so the minimum mark for a C- is a little below 50 percent. 

SCORE OUT OF 59         APPROXIMATE LETTER GRADE EQUIVALENT

  47-58                    A- or A
  38-46                    B-, B, or B+
  28-37                    C-, C, or C+
   0-27                    D, D+ or F

Reminder: You must get at least 40 percent on the final exam to pass the course; to have a chance of getting C- or higher, you need at least 50 percent on the final.

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