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ENCM 339 Fall 2001 Midterm Statistics and Approximate Letter Grades

This page is maintained by Steve Norman
Last modified: Mon Nov 19 15:15:09 MST 2001

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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 88. 

85
83 83 83 81 81 81 81 80 80 80 80 80
79 79 79 79 79 79 78 78 78 78 78 78 77 76 75 75 75 75 75
74 74 74 74 74 73 73 73 73 73 72 72 72 71 71 71 71 70 70 70
69 69 69 69 69 69 68 68 68 68 67 67 67 67 66 66 66 66 66 65 65 65
64 64 64 64 64 63 63 63 63 63 63 62 62 62 62 61 61 61 61 60 60
59 59 59 58 58 58 57 56 56 56 56 55 55 55
54 54 54 54 54 53 53 53 53 52 52 52 52 52 51 50 50 50 50
49 49 49 49 49 48 48 48 47 47 47 47 46 45 45 45 45 45
44 44 44 44 43 43 43 42 41 41 41 40 40 40 40
39 39 39 39 39 38 38 37 37 37 37 36
34 34 33 33 33 31 30
28 28 28 27 26
20 20
(4 scores were less than 20/88)
Here are some statistics: 
number of papers marked: 192

highest score:         85 / 88
75th percentile score: 71 / 88 (this score is better than 3/4 of the scores)
median score:          59 / 88 (this score is better than 1/2 of the scores)
25th percentile score: 45 / 88 (this score is better than 1/4 of the scores)

average score:       56.0 / 88
standard deviation:  17.1 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.

This was a relatively tough midterm and it was somewhat too long, so it seems fair to let 36/88 (about 41 percent) be the approximate minimum grade for a C- on this test. 

SCORE OUT OF 84         APPROXIMATE LETTER GRADE EQUIVALENT

  74-88                    A- or A
  55-73                    B-, B, or B+
  36-54                    C-, C, or C+
   0-35                    D, D+ or F

Reminder: You must get at least 50 percent on labs and 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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