Statistics is a collection of methods for observing and analyzing numerical data in order to make sensible decisions about them. In this course the basic ideas of the analysis of data and of statistical inference will be introduced. Little mathematical background is required; high school algebra is sufficient. Mathematical proofs will be minimal; reasoning and explanations will be based mostly on intuition, verbal arguments, figures, or numerical examples. Some computing will be required. This course continues as MATH 2570.

This course is intended for students from a variety of programs including the BA in Mathematics for Commerce and BUSO. Students whose programs require only 3 credits of Statistics should consider taking MATH 1131 instead. ITEC students are advised to take MATH 2565 instead.

** Instructor: ** Hanna Jankowski
** E-mail: ** hkj[at]mathstat.yorku.ca

Please include "[2560]" in the subject of your e-mail.
Also, plain text messages only, no html.

** Office: ** N621B Ross

** Office hours: **
MW 3-4pm, or by appointment. No
drop-ins, please.

[Syllabus] and the revised marking scheme.

[Actual Coverage] This file will specify what was actually
covered in the class, and will also provide **suggested exercises**.
It will
be updated on a regular basis.

Stats Lab

Here is a link
to the website for our text. You can find all of the text's datasets there.

Here is a link to **FINAL EXAM INFORMATION**.

- [March 5] There has been a request by the administration that we post your *unofficial* course grades prior to March 10th. They are now available here. They are listed by the last four digits of your student number. Did I mention that these are unofficial?
- [Feb.24] I will no longer be holding regular office hours after the final exam. If you need to see me, you will need to make an appointment (e-mail me to do so).
- [Feb.20] By request, I will host another Q&A session on Monday at 4pm. I have booked the library (Ross N619) for this, and then at 4:30 we'll be able to move to Ross N638, where we were today.
- [Feb.19] I just noticed that the review handout that I gave during the last day of class has a typo in it. The correlation is a number between -1 and 1, and not a number between 0 and 1, as the review states. If you notice other typos, please let me know!
- [Feb.18]
**PLEASE NOTE THAT THE TIME OF THE FINAL EXAM HAS BEEN CHANGED!**The new time (same date) is now posted on the official exam schedule. I am trying to make sure that everyone in the class is aware of the change - so please help me "pass it on". Also, I have been assured that the time of our exam will not be changing again. -
**Office hours etc.**: I will have office hours on Friday, 3-4pm. I will also hold an extra review session at 1pm that day in Ross N638. Lastly, I will be "around" on Monday before the exam if you wish to come and ask some last minute questions. For help on other days, don't forget about the Statlab! - [Feb.18] I have calculated an interim grade for you. If you would like to know roughly what you are going into the exam with, send me an e-mail and I can send you your grade. Please note that these grades do not take into account our revised marking scheme (based on maximums of different options). They may however be better predictors of your final grade.
- [Feb.18] Here are the handouts from the last two lectures: [Feb.13a] (with corrected table!), [Feb.13b], [Feb.18a] and [Feb.18b].
- [Feb. 13] I have booked Ross N638 from 1pm-2:30pm for next Friday, February 20th.
- [Feb.11] I know that you're not thinking about this yet... but with the holiday monday being a good chance for you to get some prep done, I'm posting some extra questions from the remaining chapters here. These are questions selected from the online quizes for chapter 4 (4.4) and 5.
- [Feb.9] Here is another picture I used in class today.
- [Feb.6] Here is a copy of the picture of binomial distributions for different values of n and p, which I used in class today.
- [Feb.4] I'm sorry that I didn't have extra review sheets today. Here is a copy. Also, I am continuing to update the file [ACTUAL COVERAGE] (link above) as before. It contains info on what we covered in class, and also suggested exercises that go with each lecture. So don't forget to check it! Lastly, on request, I am reposting information on how to access the practice problems for the test. The information will be posted on the testinfo page (link above).

Assignment 1 with dataset: lifedata.xls or lifedata.txt. Don't forget that your textbook includes a CD with all of the datasets (listed by exercise, example or table number). Due: Wednesday, September 24th (changed from the 22nd). [solutions] [The assignment was out of 40, the last question was worth 10 points, and all other questions were worth 5 points.]

Assignment 2 with solutions. [Solutions were updated Oct.29th.]

Assignment 3: with solutions.

Test 1 solutions.

Test 2 solutions.

- [histograms] (corrected Sept.9)
- [bar graphs and pie charts]
- [summary numbers and boxplots]
- [scatterplots and correlations]
- [regression]
- [randomization]