Failure to follow these rules can lead to loss of points.

- Homeworks must be submitted as a SINGLE pdf.
- Your name/ID must be clearly indicated in that pdf.
- Your answers must be legible.
- HWs submitted after Monday 2:20pm will not be accepted. So, please don't cut things too closely!

In the hw assignments appearing at the bottom of the course website,

- x.y means chapter x, exercise y in the book; hw_lectx_y means lecture x, problem y. Some answers in the back of the book are wrong; check out the list of known typos on the course website.

- "by hand" means that you must use the equations in the book/lecture to solve the problem, not an R function (nor any function in some other computer program).

- "by R" means that you should use an R function, in which case you should also turn in the corresponding computer code.
--- 1) Examples of R functions are hist( ), lm( ), t.test().
--- 2) Turn in the computer code, and
--- 3) Turn in any output of the code (e.g., graphs, correlation, ...)
--- 4) Explain the results.
--- 5) Handwritten code is NOT acceptable; a printout is necessary.
--- 6) Use ONLY R functions that we have studied in prelabs/quizzes.

- Unless otherwise stated, all problems should be done "by hand."

- Generally, provide everything that you think is required to convince the grader that you know what you are doing, and that *you* actually did the work.