UCLA ECON 41: Probability and Statistics for Economists

You are looking at Fall 2025. That term is over, so these are last term's numbers rather than seats you can take. dibs holds 1,964 sections for Fall 2025, read about 1 month ago. Separately, it has finished 527 of the 3,572 courses on its current checking list for this term. Future-term coverage is incomplete, so a course with nothing here may simply not have been reached yet. Back to Fall 2026

Sections & times

Lecture and discussion.

Fall 2025: 1 lecture and 7 discussions. 1 lecture and 3 discussions are open. The oldest of these readings was about 1 month ago.

Grades

2.83

Average grade awarded in ECON 41. Not a student rating: this is what the grades were.

In the A range

30%

of the 3,858 letter grades

D, F or W

10.2%

of every letter grade awarded, plus withdrawals

Taken pass/no pass

the registrar has this letter grade only this term

The registrar's own records: 3,858 grades over 16 terms, Fall 2021 to Fall 2025. Every instructor is pooled here.

What is inside that record

4 of those terms are summer sessions, and summer sessions are counted here.

The table below splits them, and term averages across those 16 terms ran 2.43 to 3.05.

Historical grades for HAHN, JINYONG, across recorded terms. The course summary above includes all professors.

A+ 28 · 6.1%
A 75 · 16.4%
A- 37 · 8.1%
B+ 57 · 12.5%
B 67 · 14.7%
B- 44 · 9.6%
C+ 51 · 11.2%
C 36 · 7.9%
C- 12 · 2.6%
D+ 13 · 2.9%
D 1 · 0.2%
F 35 · 7.7%
I 2 of 458

Percentages are of the 456 letter grades. Grey bars are non-letter outcomes: 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

Predicted GPA, raw average, sample size, terms, A range and the workload reviewers reported for every instructor with a grade record in this course
Instructor	Predicted GPA	Raw	n	Terms	A range	Workload	Fall 2025
CHETVERIKOV, DENIS NIKOLAYEVICH reviews ↗	2.93	2.93	1,472	4	32%	light	not teaching it
LIAO, ZHIPENG reviews ↗	2.74	2.74	873	3	28%	light	not teaching it
HAHN, JINYONG reviews ↗	2.82	2.82	456	3	31%	-	Open, 31 seats left
ROJAS, RANDALL R reviews ↗	2.46	2.44	298	2	29%	light	not teaching it
MCDEVITT, EDWARD P reviews ↗	2.96	2.97	253	2	30%	-	not teaching it
BOSWELL, KIMBERLY SASHA-GAYE reviews ↗	2.99	3.00	241	3	37%	-	not teaching it
SHENG, SHUYANG reviews ↗	2.71	2.70	219	1	25%	light	not teaching it
LEE, JAMES YUI reviews ↗	3.04	3.07	138	2	33%	-	not teaching it
GURKOVA, EKATERINA reviews ↗	2.91	2.92	113	2	27%	very light	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.

Reviews for ECON 41

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.

Read the source reviews

What comes first

The chain dibs can see is 3 courses long before ECON 41. Read from Fall 2026, because dibs has not read a class page for ECON 41 in Fall 2025 and a department can change what it requires. dibs has read a class page for every course in it.

Counted in courses rather than quarters: dibs does not know which of them a department lets you take together.

In Falls

Ran in 4 of the last 5 Falls.

From the terms dibs holds, which start in Fall 2021 and exclude summer. A department can run a course in a quarter it never has before.

From the registrar's catalog

Lecture, three hours; discussion, one hour. Enforced requisites: Mathematics 31A, 31B, with grades of C or better. Not open to students with credit for former Statistics 11. Introduction to theory and practice of mathematical statistics with emphasis on its use in economics. Introduction of basic statistical concepts such as random variables, probability distributions, estimation, confidence intervals, and hypothesis testing. Letter grading.

Sections in Fall 2025

You enroll in the discussion, not the lecture, so a discussion's status is the one that decides whether you get in. A lecture can read open while every discussion under it is full.

Seat counts as of 25 Aug 03:06: the oldest of these 9 readings. That term is over, so nothing has moved since.

Lec 1 TR 2:00pm-3:15pm
Open

Hahn, J.

2.82
predicted, this instructor · 456 grades

31 seats left. 220 of 287 enrolled -

not checked yet

7 discussions, 3 open: Dis 1B, M 4:00pm-4:50pm, Dis 1F, W 9:00am-9:50am, and Dis 1G, M 9:00am-9:50am.
Every discussion, with its time and seats (8)
- Dis 1A
  Time TBA
  
  Cancelled
  no enrollment count published
- Dis 1B
  M 4:00pm-4:50pm · Public Affairs Building 1337
  
  Open
  1 seat left.
  
  35 of 36 enrolled
- Dis 1C
  R 4:00pm-4:50pm · Bunche Hall 3178
  
  Closed
  35 of 35 enrolled
- Dis 1D
  T 4:00pm-4:50pm · Public Affairs Building 2250
  
  Closed
  36 of 36 enrolled
- Dis 1E
  F 10:00am-10:50am · Bunche Hall 2160
  
  Closed
  36 of 36 enrolled
- Dis 1F
  W 9:00am-9:50am · Bunche Hall 3211
  
  Open
  9 seats left.
  
  27 of 36 enrolled
- Dis 1G
  M 9:00am-9:50am · Bunche Hall 3211
  
  Open
  21 seats left.
  
  15 of 36 enrolled
- Dis 1H
  F 2:00pm-2:50pm · Bunche Hall 2178
  
  Closed
  36 of 36 enrolled

Final enrollment, averaged across each term's sections: between 110 and 402 a term over 10 terms, summer excluded, most recently 220 in Fall 2025. That is the shape across years, not this term, which is above.

From the people who took it

Student reviews

What taking ECON 41 was like: the work, the teaching, and what students wish they’d known.

Write a review

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.

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External reviews are separate and do not count toward the dibs rating.

Read reviews on BruinWalk

Community guidelines

Seats over time in Fall 2025

How each lecture has filled since dibs first saw it.

A dot is a reading where something moved: the seat count, the status, or the waitlist.

What a flat run means, and where a line starts

Flat between dots means it did not drift, it held and then jumped, and a line starts when dibs first saw that lecture rather than reaching back before it existed. A lecture that has never moved draws a flat line across the whole window, and one with two or three readings draws a line joining them, which is too few to read a trend from.

Lec 1 · Hahn, J. · 220 of 287 enrolled

Unchanged over 2 minutes

220 of 287 · 31 left in its discussions

Both readings say 220 of 287.

25 Aug 03:0525 Aug 03:06

1 hour plotted. dibs read it.

How readings and alerts work

A reading and an hourly record are different things, and most charts here hold more of the second missing than present. dibs has taken readings of a section since long before it began keeping an hour-by-hour log of when it looked, so the empty stretches are dibs saying it was not keeping that log yet, not that it looked and found nothing. That is the age of the record and not a fault.

Seat counts show the last successful read, not live availability. Refreshes can be delayed by request limits or upstream interruptions. Watched sections receive priority, but an hourly update for every section is not guaranteed.

The registrar can change a seat count between our checks. Alerts depend on dibs detecting an opening and completing delivery; a quiet watch does not prove that no seat opened. Check the registrar before enrolling.