Distribution of test 2 scores and comment on midterm grades

Here are the descriptive statistics from the second test:

average: 23.60 out of 40 (approx 59.01%)
median: 23.5 (58.75%)
mode: 22. 5 (56.25%)
stdev: 4.87 (12.16%)

The curve:

The mean was pretty low. I guess it was a tough long test. The following curve should give you an idea of the quality of your work (number of scores in each range is in parentheses):

A: 28.5+ (14)
B: 24 - 28 (26)
C: 18.5 - 23.5 (32)
D: 13.5 - 18 (8)
F: 13 and below (3)


Midterm grades:

In accordance with University policy, a midterm grade must be reported for those with midterm performance of D or lower. The red number on your test results page is your weighted average of points to date. Total number of points at the midterm, including the results of the second test, and only including 3 participation credit points (due to in-class exercises), is a total of 49. You should take your points and divide by 49 to put it into percentage terms.

The overall class average to date is 74.11%, a median score of 74.36%, and a standard deviation of 9.55%

The following grade scale is used to determine midterm grades:

A: 83.5%+
B: 74% - 83.49%
C: 63% - 73.99%
D: 50% - 62.99%
F: below 50%