Other Sites


  1. Central Tendency
    1. Mean
    2. Median
    3. Mode
    4. Trimean
    5. Trimmed Mean
    6. Summary 
  2. Spread
    1. Range
    2. Semi-Interquartile Range
    3. Variance
    4. Standard Deviation
    5. Summary 
  3. Shape
    1. Skew
    2. Kurtosis 
  4. Graphs
    1. Frequency Polygons
    2. Histograms
    3. Stem and Leaf Displays
    4. Box Plots
  5. Exercises

precision consulting


Free PDF for doing statistical analyses with Excel from FreeTutorialCentral

Analysis Tools
Analysis Lab
by David Lane and Joan Lu

by John Pezzullo

by Webster West

by Richard Lowry

Many descriptive statistics and stem and leaf displays
by David Lane

by Mikael Bonnier

Instructional Demos
Mean and Median
Rice Virtual Lab in Statistics

Mean and Median
Juha Puranen
University of Helsinki

Histograms, bin widths, and cross validation
Rice Virtual Lab in Statistics

Histogram explorer

by Eric Scheide

Mean and standard deviation
by T. D. V. Swinscow; revised by M. J. Campbell

Stem-and-leaf plots and frequency tables (PDF)
by B. Gerstman

Data display and summary
by T. D. V. Swinscow; revised by M. J. Campbell

Tables and histograms,
Measures of location and spread
by P. B. Stark

Summary statistics: Location and dispersion
by Gerard E. Dallal

Presenting discrete data, presenting continuous data, Characteristics of a distribution, Measures of central tendency, Measures of variability
by Keith Dear

Basic statistics, Graphical analysis
by StatSoft

Percentiles, Boxplots, Chebychev and empirical rules, Z-scores
by H. J. Newton, J. H. Carroll, N. Wang, and D. Whiting

Frequency distributions
by David Stockburger

presenting data
by Valerie Easton & John McColl

by John Behrens

Graphical data presentation
by Albert Goodman

Display of statistical data
by T. Kirkman

Statistics for the Utterly Confused
by Lloyd Jaisingh

Forgotten Statistics : A Self-Teaching 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