Information for interpreting your score on the first midterm
          and your "midterm average" on compass


   Computing the "midterm average"

Your "HW 1-5 average" is your total points on HW 1-5, divided by the
number of possible non-bonus points for these homeworks.

Your "midterm average" on compass is a weighted combination of your HW
average (20%), quiz 1 grade (15%), and midterm 1 grade (65%).  The
weights represent the relative weights of all HWs, quizzes, and exams
in the final course average.  So this is intended as a prediction of
your final course average.  

Because the later exams are worth more than the first midterm, these
predictions are based on less than 30% of the total graded material in
the course.  So there is considerable scope for improving your grade,
if you don't think your midterm average represents the best you can do.

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   Score to letter grade mappings

For the exam and for your midterm average, we've given mappings from
scores to letter grades.   The final grades at the end of the term
will have +/- distinctions, but these early scores aren't precise
enough for that.   So we're just showing the breakpoints between the
basic letter grades.

We try to be slightly conservative in these mappings, so that the
final semester grade distribution will be similar or slightly more
generous.

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   First midterm scores


86 people took the first midterm.  The range of scores was [9,50] out
of 50.  Histogram:

   scores     number
   45-50       12
   40-44.5     16
   35-39.5     17
   30-34.5     24
   25-29.5     7
   20-24.5     6
   < 20        5

The A/B line is around 42
The B/C line is around 35
The C/D line is around 30
The D/F line is around 20

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   Midterm averages

For the same 86 people, the range of midterm averages was [30.1,97.3].
Histogram:

   score is   number of people
   >=   <
   90  100      8
   85  90       7 
   80  85       14
   75  80       11
   70  75       10
   65  70       10
   60  65       11
   55  60       7
   50  55       3
   45  50       3
       45       2

The A/B line is around 85
The B/C line is around 74
The C/D line is around 62
The D/F line is around 50


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