Professor record MATH
Kenneth Robert Preston
155 grades9 sections
Grades: 2022–2025
Flunk Score99/100
ExcellentMATH 155 · Intro Probability & StatisticsMATH 155 · all instructors & syllabi
Grade record
Average GPA
2.62
Intro Probability & Statistics
Across 155 grades in MATH 155
55%
A or B
of 155 grades
18.3%
D, F or withdrew
of 169 enrolled
27.1%
A
42
28.4%
B
44
33.5%
C
52
1.3%
D
2
9.7%
F
15
8.3%
W
14
A–F are shares of 155 letter grades · W is a share of all 169 enrolled
Against everyone else who teaches MATH 155
+16% vs. the MATH 155 average (2.26 across 11 professors)
How the averages compare
Against other MATH classes, and against the university
- 2.45MATH courses
- 2.62MATH 155
- 2.89School average
Average GPA · Zoomed GPA scale
Lower averageHigher average
Lower averageHigher average
Every term against the 2.62 average
6 terms
Fall 2022Spring 2025
9 sections · 6 terms · Fall 2022 – Spring 2025
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