BIOSTAT 201A
Introduction to Biostatistics
Grades
3.83
Average grade awarded in BIOSTAT 201A. Not a student rating: this is what the grades were.
In the A range
88%
of the 402 letter grades
D, F or W
0.5%
of every letter grade awarded, plus withdrawals
Taken pass/no pass
0%
nobody in the record took it pass/no pass
The registrar's own records: 402 grades over 6 terms, Fall 2021 to Fall 2025. Every instructor is pooled here.
What is inside that record
No summer session is in that record.
The table below splits them, and term averages across those 6 terms ran 3.64 to 3.89.
Historical grades for all professors, across recorded terms. The course summary above includes all professors.
- A+ 70 · 17.4%
- A 237 · 59.0%
- A- 45 · 11.2%
- B+ 21 · 5.2%
- B 21 · 5.2%
- B- 3 · 0.7%
- C+ 1 · 0.2%
- C 2 · 0.5%
- F 2 · 0.5%
- S 5 of 409
- I 2 of 409
Percentages are of the 402 letter grades. Grey bars are non-letter outcomes: satisfactory (S) and incompletes (I).
How the non-letter outcomes are counted
They are excluded from the GPA entirely rather than scored, because counting a P as a 4.0 would be a fabrication.
By instructor
| Instructor | Predicted GPA | Raw | n | Terms | A range | Workload | Summer Session A 2026 |
|---|---|---|---|---|---|---|---|
| LEE, MARTIN L reviews ↗ | 3.88 | 3.88 | 149 | 3 | 89% | - | not teaching it |
| BELIN, THOMAS R reviews ↗ | 3.77 | 3.77 | 142 | 3 | 85% | - | not teaching it |
| ZOLLER, JOSEPH ALAN reviews ↗ | 3.83 | 3.83 | 93 | 1 | 88% | - | not teaching it |
| BAHR, KAITLIN reviews ↗ | 3.91 | 3.98 | 18 · | 1 | 100% | - | not teaching it |
Why Predicted is not the Raw average
“Predicted” is shrunk toward the course average, which is itself shrunk toward the department, so an instructor with a handful of students sits near the course mean rather than topping the list.
Grade records describe outcomes. For what a course is like to take, read student reviews written on dibs below or follow the separate external review link.
Workload and assignments
Work types reported in BruinWalk reviews of this course, across recorded instructors and terms. They may differ from this term's syllabus.
dibs has not read this course’s reviews, so it cannot say what kind of work it sets. That is dibs not having looked. It is not a course without papers or exams, and the reviews linked below are the answer until dibs catches up.
From the registrar's catalog
Lecture, three hours; discussion, one hour; laboratory, one hour. Preparation: one biological or physical sciences course. Students who have completed courses in statistics may enroll only with consent of instructor. Introduction to methods and concepts of statistical analysis. Sampling situations, with special attention to those occurring in biological sciences. Topics include distributions, tests of hypotheses, estimation, types of error, significance and confidence levels, sample size. S/U or letter grading.
Sections in Summer Session A 2026
From the people who took it
Student reviews
What taking BIOSTAT 201A was like: the work, the teaching, and what students wish they’d known.
Your experience could be the first.
No student reviews are available to read on dibs for this course yet. Took it? Tell the next person what helped, what was hard, and how you spent your time.
Looking for more perspectives?
External reviews are separate and do not count toward the dibs rating.