Online reference for review of introductory statistics material Can anyone suggest a good review reference (necessarily free online PDF) to brush up college-level statistics?
I'm looking at something which typically covers a first course in statistics ideally covering:


*

*Absolute basics (mean, variance etc.)

*Large Samples

*Confidence testing

*Hypothesis testing (normal, t, chi, F)

*Linear Regression/Correlation


I don't need a book reference. I need something like a quick review which goes over the important aspects. Anything in free form will do : Presentations, Lecture Notes or otherwise. I just need it to be succinct; depth would be much appreciated.
 A: These are not PDFs, but there are quite a few good videos at the Khan Academy.
A: Take a look at these documents:
http://onlinestatbook.com/Online_Statistics_Education.pdf
http://www.micquality.com/downloads/ref-primer.pdf
And at this site, for more materials:
http://onlinestatbook.com/
Hope this helps.
A: There are so many good possibilities and your vague description makes it difficult to narrow it down to just a couple.
But here is a short list.
1.  Humourous but also clear and accurate by Gonick "The Cartoon Guide to Statistics 1993"
http://www.amazon.com/Cartoon-Guide-Statistics-Larry-Gonick/dp/0062731025/ref=sr_1_1?s=books&ie=UTF8&qid=1341601837&sr=1-1&keywords=the+cartoon+guide+to+statistics


*

*Clearly written in the style of David Moore "The Basic Practice of Statistics 5th Edition 2010."
http://www.amazon.com/Basic-Practice-Statistics-David-Moore/dp/1429201215/ref=sr_1_2?s=books&ie=UTF8&qid=1341601954&sr=1-2&keywords=the+basic+practice+of+statistics

*Good college level book by Hogg and Tanis "Probability and Statistical Inference 8th Edition 2009." Now Published by Prentice-Hall.  Was published by Macmillian when I studied out of it in the 1970s  The authors were Hogg and Craig then and the title was different too.  I had it as "Introduction to Mathematical Statistics 3rd Edition 1970."
http://www.amazon.com/Probability-Statistical-Inference-Robert-Hogg/dp/0321584759/ref=sr_1_1?s=books&ie=UTF8&qid=1341601657&sr=1-1&keywords=hogg+tanis


*

*The classic by Mood, Graybill and Boes 1974 "Introduction to the Theory of Statistics".


http://www.amazon.com/Introduction-Theory-Statistics-3rd-Edition/dp/0070854653/ref=la_B002880BCE_1_1?ie=UTF8&qid=1341601600&sr=1-1


*

*Very modern first year undergraduate introductory text.  One of my favorites because it includes resampling methods.  Chihara and Hesterberg "Mathematical Statistics with Resampling and R, 2011" 
http://www.amazon.com/Mathematical-Statistics-Resampling-Laura-Chihara/dp/1118029852/ref=sr_1_1?s=books&ie=UTF8&qid=1341602206&sr=1-1&keywords=Chihara+and+Hesterberg

*This is the only good one that is concise "pocketbook" size. Silvey's "Statistical Inference 1975"
http://www.amazon.com/Statistical-Inference-Monographs-Statistics-Probability/dp/0412138204/ref=sr_1_1?s=books&ie=UTF8&qid=1341602312&sr=1-1&keywords=silvey+s+d
A: I think these two free PDF's are very good for this purpose:
This one is a more "conceptual" introduction, good for a refresher:
http://www.stat-help.com/intro.pdf 
And this one is a more "complete" introduction:
http://www.openintro.org/stat/down/OpenIntroStatFirst.pdf
A: The NIST/SEMATECH e-Handbook of Statistical Methods, also known as the Engineering Statistics Handbook is a great, and authoritative, reference. It is continuously supported by the National Institute of Standards and Technology (U.S. tax dollars at work!)
It is available in pdf at http://www.itl.nist.gov/div898/handbook/toolaids/pff/index.htm
The organization is a bit unusual, but there is a good search function.
A: David Colquhoun's book "Lectures on Biostatistics" covers most of the material that you mention and is available as a free pdf from the author's website http://www.dcscience.net/
It is slightly idiosyncratic in parts (which will not surprise any who know the author) and quite entertaining (the test for pureness of heart is wonderful). You can't go wrong.
