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Anscombe&#039;s quartet - Wikipedia, the free encyclopedia

All four sets are identical when examined using simple summary statistics, but vary considerably when graphed Anscombe's quartet comprises four datasets that have identical simple statistical properties, yet appear very different when graphed. Each dataset consists of eleven ( x , y ) points. They were constructed in 1973 by the statistician Francis Anscombe to demonstrate both the importance of graphing data before analysing it and the effect of outliers on statistical properties. [ 1 ] For all four datasets: http://en.wikipedia.org/wiki/Anscombe%27s_quartet
http://www.khanacademy.org/#Statistics

Khan Academy

Matrices, vectors, vector spaces, transformations. Covers all topics in a first year college linear algebra course. This is an advanced course normally taken by science or engineering majors after taking at least two semesters of calculus (although calculus really isn't a prereq) so don't confuse this with regular high school algebra.
http://flowingdata.com/2010/03/04/think-like-a-statistician-without-the-math/

Think like a statistician – without the math | FlowingData

I call myself a statistician, because, well, I'm a statistics graduate student. However, ask me specific questions about hypothesis tests or required sampling size, and my answer probably won't be very good. The other day I was trying to think of the last time I did an actual hypothesis test or formal analysis. I couldn't remember.
http://www.amstat.org/education/gaise/

GAISE Reports

GAISE Reports Participants in the Guidelines for Assessment and Instruction in Statistics Education (GAISE) project have created two reports of recommendations for introductory statistics courses (college level) and statistics education in Pre-K-12 years. Copyright © 2007 by American Statistical Association. All rights reserved. This text may be freely shared for educational and classroom use, but it may not be republished in any medium without express written consent from the authors and advance notification of the American Statistical Association.