```NOTE:  In reporting the averages from the test we drop
the lowest scores.  This is because 20% (1 out
of 5) of all scores will eventually be dropped.
In comparing your average with the class average
you need to compare with an average which is
representative of the final average.  Dropping
the lowest scores before reporting the average
is one way of estimating the effect of the
final drops. GBA

1st test

178 students took test 1

148 scored 45 or more

for those 148 the average was 73.2

2nd test

142 students took test 2

106 scored 40 or more

for those 106 the average was 59.1

3rd test

130 students took test 3

100 scored 35 or more

for those 100 the average was 62.3

4th test

108 students took test 4

87 scored 35 or more

for those  87 the average was 60.4

5th test

102 students took test 5

89 scored 35 or more

for those  89 the average was 62.7

Pre-Exam average

118 students have taken 4 or more tests

for those 118 here are the averages:

HW    6.63  (out of 10, 2 HW's remaining)
quiz 14.51  (out of 20)
(       others   14.15)
demo  3.85  (out of 5)
test 59.99  (divide by 2 to get #points)

overall 54.99

Assuming 2 more HW points for the remaining two turn-in
opportunities and 9 points out of 15 on the final results
in a predicted average of 66.  With this predicted average
a possible breakdown of grades would be:

47 - 59   D
59 - 73   C
73 - 85   B

You should figure your pre-exam total then figure how many
exam points (out of 15 possible) you need to get the grade
that you want.

Final Average

104 students took 4 or more tests plus the final exam

for those 104 here are the averages:

HW    8.0   (out of 10)
quiz 15.6   (out of 20)
demo  4.1   (out of 5)
test 64.2   (divide by 2 to get #points)

exam  8.2   (out of 15)

overall 68.0   (out of 100)

Note that 14 students who had taken four or more tests
elected not to take the final exam.  As a result the quiz,
demo, and test averages for the 104 who took the final
were higher than the pre-exam averages for those same
categories, and the overall average was higher than the
predicted final average.  Still we felt it would be
somewhat unfair to raise the predicted cutoffs.  So
basically we used the predicted grade breakdown with some
small alterations to find the gaps in the grade distribution.
Here is the final scale:

46.7 - 58.9   D
58.9 - 73.0   C
73.0 - 83.0   B

Letter grades were assigned strictly according to this
scale.  The highest E is 44.5, the lowest D is 46.8;  the
highest D is 57.0, the lowest C is 59.0;  the highest C
is 72.1, the lowest B is 73.2;  the highest B is 81.8,
and the lowest A is 83.1.  The smallest gap between
levels is 1.1 points between C and B.

Here is the final grade distribution for the 104 students
who took the final exam.
``` 