Statistics C131A: Statistical Methods for Data Science

UC Berkeley, Spring 2026

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Announcements 📣

Schedule 📅

Week 8

Mon Mar 9: Lecture Canceled 20 Power analysis and 2-sample test. Slides

Week 7

Fri Mar 6: Lecture 19 Demo of hypothesis testing
Thu Mar 5: Section 11 Midterm practice
Wed Mar 4: Lecture 18 Intro to Hypothesis testing Seating map
Tue Mar 3: Section 10 More on hypothesis testing Lab 5 (DataHub)
Lab 5 (GitHub)
Mon Mar 2: Lecture 17 More practice with sampling Tons of exam practice exercises

Week 6

Fri Feb 27: Lecture 16 More practice with sampling Updated practice notes

Thu Feb 26: Section 9 Finish lab 4 and practice
Wed Feb 25: Lecture 15 Practice with distributions and estimators for the midterm Practice problems
Tue Feb 24: Section 8 Confidence intervals in R Lab 4, Part B (DataHub)
Lab 4, Part B (GitHub)
Mon Feb 23: Lecture 14 The hunt for the sampling distribution. Calculating confidence intervals. Slides

Week 5

Fri Feb 20: Lecture 13 Casting the smallest net to catch the biggest fish. Confidence intervals Slides
Thu Feb 19: Section Canceled
Wed Feb 18: Lecture 12 Magic tricks to know the unknown: sampling distributions. Slides
Tue Feb 17: Section 7 Sampling distributions Lab 3, Part A (DataHub)
Lab 3, Part A (GitHub)
Mon Feb 16: Lecture No lecture (Presidents' Day)

Week 4

Fri Feb 13: Lecture 11 Throwing darts into the clouds: our first point estimator. Slides
Thu Feb 12: Section n/a canceled
Wed Feb 11: Lecture 10 Lost in the clouds: Normal, functions of RV, Intro to Inference. Slides
Tue Feb 10: Section 6 Exercises on probability distributions.
Mon Feb 9: Lecture 9 CDF, variance, exercices with distributions and expectations. Introduction to inference. No slides for now

Week 3

Fri Feb 6: Lecture 8 Continuous distributions Slides
Thu Feb 5: Section 5 Working with distributions in R (continued)
Wed Feb 4: Lecture 7 More discrete distributions Slides
Tue Feb 3: Section 4 Working with distributions in R Lab 2 (DataHub)
Lab 2 (GitHub)
Mon Feb 2: Lecture 6 Random Variables & Distributions Slides (only partly followed)

Week 2

Fri Jan 30: Lecture 5 Finish plotting plus Intro to distributions. No Slides
Thu Jan 29: Section 3 Data munging and plotting with stop-and-frisk (continued)
Wed Jan 28: Lecture 4 Histograms Slides (finishing up previous ones)
Tue Jan 27: Section 2 Data munging and plotting with stop-and-frisk Lab 1 (DataHub)
Lab 1 (HTML)
Mon Jan 26: Lecture 3 Boxplots Slides
Worksheet
Lecture code (DataHub)
Lecture code (GitHub)

Week 1

Fri Jan 23: Lecture 2 Principles of visualization Slides
Worksheet
Thu Jan 22: Section 1 Getting started with R (not graded!) Lab 0 (HTML w/ DataHub Link)
Wed Jan 21: Lecture 1 Welcome! Slides
Worksheet
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