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Table 2:
Summary statistics for exam scores.
Note that 12 out of 29 students
scored 100.
Statistic |
Value |
n |
29 |
mean |
92 |
st.dev. |
9 |
min |
69 |
Q1 |
85 |
median |
96 |
Q3 |
100 |
max |
100 |
Table 3:
Approximate grade breakdown. The numerical score is what
matters and this grade breakdown is given purely as a guide
to what your final grade might be if you continue to
perform at the same level. This is in fact slightly
more conservative (i.e., lower grades) than the final
grades are likely to be, except possibly at the very
low end, where some D's and F's are possible.
Grade |
Range |
Rel.Freq. |
A |
95 - 100 |
52% |
B |
81 - 94 |
31% |
C |
69 - 80 |
17% |
Figure 2:
Histogram of midterm exam scores.
 |
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Dennis Cox
3/25/2001