- Statistics is used in almost any technical field.
- In CS in particular, statistics is central to the fastest-growing specialities, such as Big Data, machine learning etc.

- This is a
**MATH**course. - Even the R programming problems (Homework, Quizzes) are actually "math problems in disguise." You have to think about a lot more than just coding in these problems.
- The course makes heavy use of calculus and
**LINEAR ALGEBRA**. - However, you are NOT assumed to have prior background in probability, statistics or the R language. Students who have such background do NOT have an "advantage" (at least the way I teach the course).
- This is NOT a "formula plugging" course, nor does it consist of learning patterns to mimic. Every Homework and Quiz problem is different.
- Most students do well in the first 1/3 of the course, which involves only discrete probability.
- The second 1/3 of the course uses calculus, and the last
1/3 uses linear algebra. Students lacking a good
**intuitive**understanding of those subjects find the material quite difficult. - Contrary to what you might guess (say, based on high school
AP Statistics, an abomination that ought to be banned), the
most challenging part of the course is the last 1/3, involving
statistics.
**Good math intuition is crucial here.** - If you did well in calculus word problems ("Water is flowing into a conical tank...accelerating at a rate of...with leakage rate of..."), you should do well in this course.

- Similar to STA 131AB, but with CS applications and programming.

- No midterms or final. (Group project in lieu of final.)
- Quizzes are given in discussion section
**EVERY WEEK**. Quiz problems range from very straightforward to very challenging. - There is a special Quiz on the last day of lecture.
- Quiz problems will often refer to specific pages in the
book. (Open book Quizzes, no memorization needed.)
It is
**REQUIRED**that you read the textbook, in complete detail. Plan on**SEVERAL HOURS**of dense reading per week! - Quiz scores tend to be low, but letter grades are generous.
- Quiz 5 and Quiz 6 of Fall 2013 are typical in content and style. In each case, 40/100 was the cutoff for a B-. (Don't be fooled by the fact that the answers are all short.)
- Quizzes form 60% of your course grade.

- 4-5 assignments during the quarter.
- Homework is done in
**GROUPS**. - Grading is done
**INTERACTIVELY**, by Group. - TA will ask each members of the Group questions, both about
the assignment
**and about the course material in general.**Each Group member receives a separate grade; one member may get an A+ while another gets a D. - Homework counts 40% of your course grade.

- The textbook is open source, i.e. FREE.
- It is downloadable from the Web, and you must print it yourself at a copying shop of your choice.
- You must have your own (not shared)
**HARD COPY**of the entire textbook, and bring it to all Lectures and Quizzes. - The textbook is my open source book. YOU MUST HAVE THIS VERSION, NOT AN OLD ONE, BECAUSE PAGINATION ETC. WILL MATTER ON QUIZZES.
- We will cover Chapters 2-9, 15-18 and 22 (in some cases only
part of a chapter). Note: In the official,
**required**version of the book for our class, only those chapters will be included in the PDF file.

- It is expected that the student be
**NON-PASSIVE**in learning. Most of the student learning comes from reading the textbook in very careful, thoughtful detail. - I used to lecture in the traditional way -- I spent time writing on the board, the students spent time copying it to paper.
- Then I realized, "What a colossal waste!" So, now
**I give you**the printed notes, so you and I can spend the time discussing the material. - So, in lecture, we DISCUSS the book. I almost never write on the board, nor do I have Powerpoint slides.
- It is NOT recommended that students read the book ahead of
the lecture. In the lecture,
**I prepare you to do the reading.** - Goals of the lecture:
- Clarify issues brought up by students concerning reading related to the last lecture.
- Prepare students for the next reading material, by giving an overview of what the material will do, and going into the more difficult examples in detail .

- You could decide to skip lecture and just read the book, but
**it IS really helpful to go to lecture**. There will be spur-of-the-moment examples and insights, answers to students' questions. etc. And**you are responsible for everything that comes up in lecture**.