 Definition
 Sampling distribution of the mean
 Standard error
 Central limit theorem
 Area under sampling distribution of the mean
 Difference between means
 Linear combination of means
 Pearson's correlation
 Difference between correlations
 Median
 Standard deviation
 Proportion
 Difference between proportions
 Exercises
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Analysis
Tools
Tables
Instructional Demos
Sampling
distribution simulation
Rice Virtual Lab in Statistics
Box
models
by Statistics Department, University of Illinois at Urbana Champaign
Text
Sampling
distribution of the mean
by Keith Dear
Standard
error
by P. B. Stark
Sampling
distribution
by H. J. Newton, J. H. Carroll, N. Wang, and D. Whiting
Sampling distributions
by David Stockburger
Sampling
by William Trochim 
Statistics
for the Utterly Confused
by Lloyd Jaisingh
Forgotten
Statistics : A SelfTeaching Refresher Course
by Jeffrey Clark
Chances
Are : The Only Statistics Book You'll Ever Need
by Stephen Slavin
The
Cartoon Guide to Statistics
by Larry Gonick and Woollcott Smith
Schaum's
Outline of Theory and Problems of Elements of Statistics I: Descriptive
Statistics and Probability
by Stephen Bernstein and Ruth Bernstein
Statistics
the Easy Way
by Douglas Downing and Jeffrey Clark (Contributor)
Statistics
You Can't Trust : A Friendly Guide to Clear Thinking About Statistics
in Everyday Life
by Stephen Kent Campbell, Steve Campbell, Mark V. Hall (Illustrator)
Statistics
: Cliffs Quick Review
by David H. Voelker, Peter Z. Orton
Fundamental
Statistics for the Behavioral Sciences with CDRom
by David Howell 