Topic 
Web page 
Video 
Other 
General Vocabulary 
Population
STEPS Project, U of Glasgow
Sample
STEPS Project, U of Glasgow
Statistics and parameters (web page)
statisticshowto.com
Exploratory Data Analysis
US EPA website 
Statistics and parameters (video)
statisticshowto.com 

Types of Variables 
Intro to variables
Scott Preston, SUNYOswego
Categorical (qualitative) variables versus quantitative variables
StatTrek
Univariate vs. bivariate data
StatTrek 


Categorical Variables (aka Qualitative or Nominal Variables) 
Oneway frequency and relative frequency tables
StatTrek
Twoway tables (both frequency and relative frequency tables)
StatTrek 
Excel video: Finding relative frequencies for one variable
brucesimmons.com
Excel video: Finding relative frequencies for a twoway table
brucesimmons.com 

Graphs of Categorical Variables 
Graphs for one categorical variable (web page)
StatTrek 
Graphs for one categorical variable (video)
StatTrek
Excel video: Bar graphs for one variable
brucesimmons.com
Excel video: Bar graphs for a twoway table
brucesimmons.com 
Interactive web page: Graphing categorical variables
onlinestatbook.com
Cartoon, xkcd.com 
Quantitative Variables (aka Measurement Variables) 
Describing distributions: center, spread, shape
StatTrek
Describing distributions: skewness and modality
StatTrek
Measuring central tendency
StatTrek

Central tendency concept
onlinestatbook.com
Calculating central tendency
onlinestatbook.com
Mean, median, mode
Khan Academy 
Interactive web page: Central tendency and balance
onlinestatbook.com
Interactive web page: Exploring the mean and median
Khan Academy 
Fivenumber summary and outliers 
Quartiles
STEPS Project, U of Glasgow
Quartiles and the fivenumber summary
STEPS Project, U of Glasgow 
Excel video: Calculating the fivenumber summary
brucesimmons.com
Testing for outliers using the Tukey test
brucesimmons.com 
Calculator video: onevariable stats on a TI calculator
brucesimmons.com
Cartoon making fun of TI calculators, xkcd.com 
Graphs of Quantitative Variables 
Dotplot
StatTrek
Stemplot
StatTrek
Histogram
StatTrek
Boxplot
StatTrek
Comparing data sets with graphs
StatTrek 
Dotplot
eHowEducation
Stemplot
onlinestatbook.com
Histogram
onlinestatbook.com
Boxplot
Khan Academy 
Calculator video: Boxplots on a TI calculator
brucesimmons.com
Interactive web page: Matching histograms to verbal descriptions
University of Minnesota, Morris
Cartoon: Outlier
xkcd.com 
Variability (aka Spread or Dispersion) 
Range, IQR, variance, and standard deviation
StatTrek

Calculating sample variance and sample standard deviation
brucesimmons.com
Calculating population variance and standard deviation
Khan Academy
Range, variance, and standard deviation
Khan Academy 
Interactive web page: Matching standard deviations to graphs
University of Minnesota, Morris
Interactive web page: Exploring standard deviation
Khan Academy 
Resistance and Nonresistance of Statistics 


Interactive web page: Is mean or median a better measure of center?
onlinestatbook.com
Interactive web page: Resistance of measures of center
Beth Chance, Cal Poly San Luis Obispo
Interactive web page: Resistance of measures of spread
Beth Chance, Cal Poly San Luis Obispo 
Using the Standard Deviation 
Meausring position: percentiles, quartiles, and zscores
StatTrek
Empirical rule (aka 689599.7 rule)
statisticshowto.com 
Computing zscores
Khan Academy
Excel video: Computing zscores
brucesimmons.com
Empirical rule and the normal distribution
Khan Academy
More practice with the empirical rule and the normal distribution
Khan Academy 
Interactive empirical rule
Beth Chance, Cal Poly San Luis Obispo
Interactive practice problems for the empirical rule
Khan Academy 
Sample and Population Standard Deviation: A Detailed Look 
Bias vs precision
STEPS Project, U of Glasgow 

Interactive web page: Resistance of measures of spread
Beth Chance, Cal Poly San Luis Obispo 
Topic 
Web page 
Video 
Other 