# Other

• ### swirl - Learning R

swirl is a software package for the R programming language that turns the R console into an interactive learning environment. Users receive immediate feedback as they are guided through self-paced lessons in data science and R programming.

• ### Robustness of Mean and Median (Shiny App)

Which is more robust against outliers: mean or median?  This app demonstrates the (in)stability of these descriptive statistics as the value of an outlier and the number of data points change.

• ### Game: Tangrams

A game to aid in teaching experimental design and significance testing (especially one sample, two sample, and matched pair situations). Tangrams are puzzles in which a person is expected to place geometrically shaped pieces into a particular design. The on-line Tangram Game provides students the opportunity to design many versions of the original game in order to test which variables have the largest effect on game completion time. A full set of student and instructor materials are available and were created by Kevin Comiskey (West Point), Rod Sturdivant (Ohio State University) and Shonda Kuiper (Grinnell College) as part of the Stat2Labs collection.

• ### Webinar: This Little Piggy Teaches Probability

November 23, 2010 Activity Webinar presented by Stacey Hancock, Reed College, Jennifer Noll, Portland State University, Sean Simpson, Westchester Community College, and Aaron Weinberg, Ithaca College, and hosted by Leigh Slauson, Capital University. Extra materials available for download free of charge. Many instructors ask students to demonstrate the frequentist notion of probability using a simulation early in an intro stats course. Typically, the simulation involves dice or coins, which give equal (and known) probabilities. How about a simulation involving an unknown probability? This webinar discusses an experiment involving rolling (unbalanced) pigs. Since the probabilities are not equal, this experiment also allows the instructor to have students think about the concept of fairness within games.

• ### The STAT-ATTIC Website: A Database of Statistics Applets (JAVA) for Introductory Courses

A searchable database of approximately 600 applets for teaching introductory statistics topics, including graphical displays, descriptive statistics, probability concepts, random variables, sampling and sampling distributions, confidence intervals, hypothesis testing, ANOVA, chi-square tests, correlation and regression, time series and forecasting, decision analysis, and quality control charts. Applets are arranged by topic and intended use. Information on each applet includes source and url as well as a brief description.

• ### Gallery: Reinterpreting Vasily Grigoryevich Perov

A sketch by Anastasia Mandel reinterpreting Hunters at Rest by Vasily Grigoryevich Perov (1871) with the statistical caption "Capture-recapture statistics." This is part of a collection of sketches by Anastasia Mandel and their accompanying statistical captions discussed in the paper "How art helps to understand statistics" (Model Assisted Statistics and Applications, 2009) by Stan Lipovetsky and Igor Mandel in volume 4 pages 313-324. Free to use in classrooms and on course websites.
• ### Gallery: Reinterpreting Cristofano Allori

A sketch by Anastasia Mandel reinterpreting Judith with the Head of Holofernes by Cristofano Allori (1615) with the statistical caption "Segmentation; this one even helped to disperse an army." This is part of a collection of sketches by Anastasia Mandel and their accompanying statistical captions discussed in the paper "How art helps to understand statistics" (Model Assisted Statistics and Applications, 2009) by Stan Lipovetsky and Igor Mandel in volume 4 pages 313-324. Free to use in classrooms and on course websites.

• ### Gallery: Reinterpreting Johannes Vermeer

A sketch by Anastasia Mandel reinterpreting Woman Holding a Balance by Johannes Vermeer (1662-63) with the statistical caption "Sample balancing: "A false balance is abomination to the LORD, but a just weight is his delight.", Proverbs, 11:1" This is part of a collection of sketches by Anastasia Mandel and their accompanying statistical captions discussed in the paper "How art helps to understand statistics" (Model Assisted Statistics and Applications, 2009) by Stan Lipovetsky and Igor Mandel in volume 4 pages 313-324. Free to use in classrooms and on course websites.
• ### Joke: Execution delayed

A joke that might be used in comparing Bayesian and frequentist interpretations of probability attributed to statistician Xiao-Li Meng.
• ### Quote: Paulos on Uncertainty

Uncertainty is the only certainty there is, and knowing how to live with insecurity is the only security. is a quote by American mathematician and Temple University professor John Allen Paulos (1945 - ). The quote is found in his 2003 book "A Mathematician Plays the Stock Market" where he is referencing something told to him by his father.