Statistics 131a: Statistical Methods for Data Science

UC Berkeley, Fall 2026

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Read the syllabus.

Schedule 📅

Week 1

Wed Aug 26:	Lecture 1 Welcome	Slides
Thu Aug 27:
Fri Aug 28:	Lecture 2 Principles of Visualization	Slides (TBD) Lecture code (TBD)

Week 2

Mon Aug 31:	Lecture 3 Boxplots and Histograms	Slides (TBD) Worksheet (TBD) Lecture code (TBD)
	HW 1 Released (tentative)	Homework 1 (TBD)
	Exam Prerequisite quiz offered today in CBTF
Tue Sep 1:	Exam Prerequisite quiz offered today in CBTF
Wed Sep 2:	Lecture 4 Distributions of Data	Slides (TBD) Worksheet (TBD) Lecture code (TBD)
Wed Sep 2:	Exam Prerequisite quiz offered today in CBTF
Thu Sep 3:	Exam Prerequisite quiz offered today in CBTF
Fri Sep 4:	Lecture 5 Data from Distributions	Slides (TBD) Worksheet (TBD) Lecture code (TBD)
	HW 1 DUE	Homework 1 (TBD)
	Exam Prerequisite quiz offered today in CBTF

Week 3

Mon Sep 7:	Holiday (Labor Day)
Mon Sep 7:	HW 2 Released (tentative)	Homework 2 (TBD)
Tue Sep 8:
Wed Sep 9:	Lecture 6 Probability I	Slides (TBD) Worksheet (TBD) Lecture code (TBD)
Thu Sep 10:
Fri Sep 11:	Lecture 7 Probability II
Fri Sep 11:	HW 2 DUE	Homework 2 (TBD)

Week 4

Mon Sep 14:	Lecture 8 Parallel Universes	Slides (TBD) Worksheet (TBD)
Mon Sep 14:	HW 3 Released (tentative)	Homework 3 (TBD)
Tue Sep 15:
Wed Sep 16:	Lecture 9 Sampling distributions I	Demo (TBD) Demo (TBD) Slides (TBD) Worksheet (TBD)
Thu Sep 17:
Fri Sep 18:	Lecture 10 Sampling distributions II	Slides (TBD) Worksheet (TBD)
Fri Sep 18:	HW 3 DUE	Homework 3 (TBD)

Week 5

Mon Sep 21:	Lecture 11 Bootstrap	Slides (TBD) Demo (TBD) Demo (TBD) Worksheet (TBD)
Mon Sep 21:	HW 4 Released (tentative)	Homework 4 (TBD)
Tue Sep 22:
Wed Sep 23:	Lecture 12 Confidence intervals I	Slides (TBD) Worksheet (TBD) Lecture code (TBD)
Thu Sep 24:
Fri Sep 25:	Lecture 13 Confidence intervals II	Demo (TBD) Demo (TBD) Slides (TBD) Worksheet (TBD) Lecture code (TBD)

Week 6

Mon Sep 28:	Lecture 14 Hypothesis Testing I	Slides (TBD) Worksheet (TBD) Lecture code (TBD)
Tue Sep 29:
Wed Sep 30:	Lecture 15 MT1 Prep Lecture	Annotated worksheet/slides (TBD) Worksheet/slides (TBD)
Wed Sep 30:	HW 4 DUE	Homework 4 (TBD)
Thu Oct 1:	Exam Midterm 1 in CBTF offered today
Fri Oct 2:	Exam Midterm 1 in CBTF offered today

Week 7

Mon Oct 5:	Lecture 16 Hypothesis Testing II	Slides (TBD) Worksheet (TBD)
Mon Oct 5:	HW 5 Released (tentative)	Homework 5 (TBD)
Tue Oct 6:
Wed Oct 7:	Lecture 17 Type I+II Errors and Multiple Testing	Slides (TBD) Worksheet (TBD) Lecture code (TBD)
Wed Oct 7:	Exam Midterm 1 retake in CBTF offered today
Thu Oct 8:	Exam Midterm 1 retake in CBTF offered today
Fri Oct 9:	Lecture 18 Power and experiment planning	Slides (TBD) Worksheet (TBD) Lecture code (TBD)
Fri Oct 9:	HW 5 DUE	Homework 5 (TBD)

Week 8

Mon Oct 12:	Lecture 19 Correlation and simple linear regression	Slides (TBD) Worksheet (TBD) Lecture code (TBD)
Mon Oct 12:	HW 6 Released (tentative)	Homework 6 (TBD)
Tue Oct 13:
Wed Oct 14:	Lecture 20 Uncertainty in regression and Multiple regression	Slides (TBD) Worksheet (TBD) Lecture code (TBD)
Thu Oct 15:
Fri Oct 16:	Lecture 21 Closeness of fit	Slides (TBD) Worksheet (TBD) Lecture code (TBD)
Fri Oct 16:	HW 6 DUE	Homework 6 (TBD)

Week 9

Mon Oct 19:	Lecture 22 Polynomial terms	Slides (TBD) Worksheet (TBD) Lecture code (TBD)
Mon Oct 19:	HW 7 Released (tentative)	Homework 7 (TBD)
Tue Oct 20:
Wed Oct 21:	Lecture 23 Categorical Covariates	Slides (TBD) Worksheet (TBD) Lecture code (TBD)
Thu Oct 22:
Fri Oct 23:	Lecture 24 MT2 Review Lecture
Fri Oct 23:	HW 7 DUE	Homework 7 (TBD)

Week 10

Mon Oct 26:	Exam Midterm 2 in CBTF offered today
Tue Oct 27:	Exam Midterm 2 in CBTF offered today
Wed Oct 28:	Lecture 25 Interactions	Slides (TBD) Worksheet (TBD) Lecture code (TBD)
Wed Oct 28:	HW 8 Released (tentative)	Homework 8 (TBD)
Thu Oct 29:
Fri Oct 30:	Lecture 26 Cross-validation	Slides (TBD) Worksheet (TBD)

Week 11

Mon Nov 2:	Lecture 27 Linear probability models
Mon Nov 2:	Exam Midterm 2 retake in CBTF offered today
Tue Nov 3:	Exam Midterm 2 retake in CBTF offered today
Wed Nov 4:	Lecture 28 Logistic Regression I	Slides (TBD) Worksheet (TBD) Lecture code (TBD)
Thu Nov 5:
Fri Nov 6:	Lecture 29 Logistic Regression II	Slides (TBD) Worksheet (TBD) Lecture code (TBD)
Fri Nov 6:	HW 8 DUE	Homework 8 (TBD)

Week 12

Mon Nov 9:	Lecture 30 Classification error metrics I	Slides (TBD) Worksheet (TBD)
Mon Nov 9:	HW 9 Released (tentative)	Homework 9 (TBD)
Tue Nov 10:
Wed Nov 11:	Holiday (Veterans Day)
Thu Nov 12:
Fri Nov 13:	Lecture 31 Classification error metrics II	Slides (TBD) Worksheet (TBD)

Week 13

Mon Nov 16:	Lecture 32 Causal Inference I
	HW 10 Released (tentative)	Homework 10 (TBD)
	HW 9 DUE	Homework 9 (TBD)
Tue Nov 17:
Wed Nov 18:	Lecture 33 Causal Inference II
Thu Nov 19:
Fri Nov 20:	Lecture 34 A brief overview of statistical methods	Slides (TBD) Worksheet (TBD)

Week 14

Mon Nov 23:	Lecture 35 k-means clustering	Slides (TBD) Worksheet (TBD)
Tue Nov 24:	HW 10 DUE	Homework 10 (TBD)
Wed Nov 25:	Holiday (Thanksgiving)
Thu Nov 26:	Holiday (Thanksgiving)
Fri Nov 27:	Holiday (Thanksgiving)

Week 15

Mon Nov 30:	Lecture 36 MT3 Prep Lecture	Practice problems on bcourses (TBD)
Tue Dec 1:
Wed Dec 2:	Exam Midterm 3 in CBTF offered today
Thu Dec 3:	Exam Midterm 3 in CBTF offered today
Fri Dec 4:	Lecture 37 Decision Trees / Random Forests	Slides (TBD) Worksheet (TBD)

Week 16

Mon Dec 7:	Exam Midterm 3 retake in CBTF offered today
Tue Dec 8:	Exam Midterm 3 retake in CBTF offered today

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