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ENCM 369 Winter 2008 Midterm Statistics and Approximate Letter Grades

Statistics ...

There were 148 papers written. Below is a histogram of scores out of 70. Each * represents one student's paper.

65-70:    **************
60-64.5:  ******************
55-59.5:  *********************
50-54.5:  ******************
45-49.5:  ****************
40-44.5:  ********************
35-39.5:  *************
30-34.5:  ********
25-29.5:  *************
20-24.5:  ***
15-19.5:  **
10-14.5:  **

The average score was 47.4 / 70, or about 68 percent.
The sample standard deviation was 13.6 / 70.

The 75th percentile score was 59.5 / 70. (One quarter of scores were better than this.)
The median score was 49 / 70. (One half of scores were better than this.)
The 25th percentile score was 38.5 / 70. (One quarter of scores were better than this.)

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.

SCORE OUT OF 57         APPROXIMATE LETTER GRADE EQUIVALENT

   59-70                  A-, A, or A+
   48-58.5                B-, B, or B+
   37-47.5                C-, C, or C+
    0-36.5                D, D+ or F

Reminder: You must get at least 40 percent on the final exam to pass the course.