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STATS 100A · Dis 1B

Introduction to Probability

Fall 2026Zhang, Z.4 units

Seats, time, final and grades

Seats

Closed by the department.

39 enrolled enrolled. The department published this count and no capacity, so there is no share to fill.

Read 50 minutes ago. This is a recent reading, not a live seat count.

Its lecture reads closed by the department (116 enrolled): you attend both, so this seat is not one you can take while that holds. No waitlist listed.

Meets

F 10:00am-10:50am

This discussion only. You also attend Lec 1.

Final

Mon 7 Dec, 8:00am to 11:00am

One exam for the whole class, Los Angeles time.

Read 10 hours ago.

Grades

3.55

Predicted GPA

Historical records across all instructors; 2,470 letter grades

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Your setup, with any current hold shown beside the watch control.

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Your year

Helps dibs interpret enrollment limits. Uncertain eligibility may still be included with a caveat.

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When you can enroll

Set your appointment or acknowledge that an open seat may not be available to you yet.

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A watch slot

25 per account. A lecture watch also covers its discussions. Paused watches still use a slot.

25 free watches

Before you can enroll

Registrar's Restrictions cell, read 6 days ago: "Undergraduate Students Only".

Tell dibs what you have already taken and this line will say which of these you have. Your list.

From the registrar

For Statistics 10 through 186, enrolling on the wait list does not guarantee enrollment in the course. A place on the wait list only offers a chance to add the course if enrolled students drop the course.

Restrictions checked 6 days ago and may be outdated. Unwatched sections are rechecked less often than watched sections. Check the registrar before counting on a seat.

When it meets

This discussion and its linked lecture.

Mon
Tue
Wed
Thu
Fri
10am
11am
12pm
1pm
2pm
3pm

Lec 1

2pm-3:15pm

Lec 1

2pm-3:15pm

Dis 1B

10am-10:50am

Scroll sideways for the whole week. All meeting times are listed below.

  • Dis 1B

    F 10:00am-10:50am

  • Lec 1 (required lecture)

    TR 2:00pm-3:15pm

Mathematical Sciences 5128

Grades

3.55

Predicted GPA

Historical records across all instructors; 2,470 letter grades

Of the 8 people in the grade record for STATS 100A, the 2 with the most grades: WU, YINGNIAN at 3.93 over 749 grades and WANG, BINGLING at 3.48 over 427 grades.

A range
67%
P/NP
1%
D/F/W
2.1%

Full grade history for STATS 100A

What students say

dibs measures outcomes: grades, seats, how fast it fills. For what the class is actually like to sit in, BruinWalk has the reviews.

What the work looks like

  • Exams mentioned, no number given, 21 mentions in past reviews
  • Quizzes mentioned, no number given, 2 mentions in past reviews
  • Papers mentioned, no number given, 2 mentions in past reviews
  • Problem sets mentioned, no number given, 11 mentions in past reviews
  • Group works mentioned, no number given, 1 mention in past reviews

Based on 156 reviews; source checked about 1 month ago. dibs counts only what a review actually states, so a kind of work nobody mentioned is absent rather than zero.

Will it still be here

no history chance of closing before your enrollment pass.

Final enrollment per term from four years of grade data. Summer excluded: different population, different pass structure.

  • 6021F
  • 6622W
  • 6622S
  • 7922F
  • 7823W
  • 6823F
  • 7524S
  • 7424F
  • 8325W
  • 7525S
  • 10525F
Enrollment by term: 21F 60, 22W 66, 22S 66, 22F 79, 23W 78, 23F 68, 24S 75, 24F 74, 25W 83, 25S 75, 25F 105

Peak 105 · most recent 25F at 105

Seats over time

Freed 1 seat over about 2 months

39 of 40 · no seats left
18 Aug 18:4017 Sep 09:1516 Oct 23:50
Checked 168 of the 171 hours with hourly history, 98%. No reading was recorded in 3 hours. dibs had no hourly record before 9 Oct, which is the other 1251 of 1422 plotted.39 of 40 enrolled at the newest reading, 50 minutes ago, and no seats left. Seats from 18 Aug 18:40 to 16 Oct 23:50, 40 to 39. Checks are not continuous monitoring. Changes between checks may be missed.

A dot is a reading where something moved: the seat count, the status, or the waitlist. Flat between dots joins recorded counts; changes between reads may be missed. The line starts when dibs first saw this section rather than reaching back before it existed. The last one is the last time dibs read this section, moved or not: 50 minutes ago.

Show the readings (52)
Recorded Enrolled Capacity Status Waitlist Hours read
16 Oct 23:50 39 0 closed by the department - 168 of 217, 46 no hourly record
7 Oct 23:32 39 0 closed by the department - no hourly record
7 Oct 20:50 40 0 closed by the department - no hourly record
7 Oct 19:00 39 0 closed by the department - no hourly record
7 Oct 15:30 40 0 closed by the department - no hourly record
7 Oct 14:30 39 0 closed by the department - no hourly record
1 Oct 23:10 40 0 closed by the department - no hourly record
1 Oct 22:30 39 0 closed by the department - no hourly record
1 Oct 20:50 40 0 closed by the department - no hourly record
1 Oct 20:10 39 0 closed by the department - no hourly record
1 Oct 19:10 40 0 closed by the department - no hourly record
1 Oct 18:20 39 0 closed by the department - no hourly record
1 Oct 17:22 40 0 closed by the department - no hourly record
1 Oct 14:40 39 0 closed by the department - no hourly record
1 Oct 13:52 40 0 closed by the department - no hourly record
1 Oct 01:12 39 0 closed by the department - no hourly record
1 Oct 00:10 37 0 closed by the department - no hourly record
30 Sep 22:30 38 0 closed by the department - no hourly record
30 Sep 21:42 39 0 closed by the department - no hourly record
30 Sep 21:10 38 0 closed by the department - no hourly record
30 Sep 20:30 37 0 closed by the department - no hourly record
30 Sep 19:40 38 0 closed by the department - no hourly record
30 Sep 18:12 37 0 closed by the department - no hourly record
30 Sep 16:50 38 0 closed by the department - no hourly record
29 Sep 01:40 37 0 closed by the department - no hourly record
29 Sep 00:30 38 0 closed by the department - no hourly record
28 Sep 23:12 37 0 closed by the department - no hourly record
28 Sep 22:50 38 0 closed by the department - no hourly record
28 Sep 20:30 39 0 closed by the department - no hourly record
28 Sep 19:42 37 0 closed by the department - no hourly record
28 Sep 18:30 38 0 closed by the department - no hourly record
28 Sep 17:00 39 0 closed by the department - no hourly record
28 Sep 16:12 38 0 closed by the department - no hourly record
28 Sep 16:00 39 0 closed by the department - no hourly record
28 Sep 15:10 38 0 closed by the department - no hourly record
28 Sep 13:30 39 0 closed by the department - no hourly record
28 Sep 12:42 38 0 closed by the department - no hourly record
28 Sep 09:50 39 0 closed by the department - no hourly record
28 Sep 09:12 38 0 closed by the department - no hourly record
19 Sep 23:40 39 0 closed by the department - no hourly record
19 Sep 22:40 40 0 closed by the department - no hourly record
19 Sep 11:50 39 0 closed by the department - no hourly record
19 Sep 10:30 40 0 closed by the department - no hourly record
19 Sep 09:10 39 0 closed by the department - no hourly record
19 Sep 08:10 40 0 closed by the department - no hourly record
19 Sep 07:22 39 0 closed by the department - no hourly record
19 Sep 01:20 40 0 closed by the department - no hourly record
18 Sep 23:50 40 40 closed - no hourly record
18 Sep 23:00 40 0 closed by the department - no hourly record
18 Sep 20:30 40 40 closed - no hourly record
18 Sep 18:50 40 0 closed by the department - no hourly record
18 Aug 18:40 40 40 closed - -
How readings and alerts work

Dated seat counts can be available even when hourly check history is missing. Gaps do not show whether seats changed between observations.

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.

Class chat

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Dis 1B shares one room with Lec 1 and every other discussion under it, because that is what a student means by "my class".

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