# Data Presentation

• ### Cartoon: Million, Billion, Trillion

A cartoon suitable for use in teaching about perceptions of the size of large numbers and the use of the log scale. The cartoon is number 2091 (December, 2018) from the webcomic series at xkcd.com created by Randall Munroe. Free to use in the classroom and on course web sites under a Creative Commons attribution-non-commercial 2.5 license.

• ### Food: Descriptive Statistics with Oranges

An activity to gather data on oranges for use in a unit on descriptive statistics.  The idea was presented at the 2019 USCOTS meeting by Katherine Frey Froslie and is described in her blog at https://www.statistrikk.no/2019/05/19/oranges-are-the-new-statistics/

Here students measure how long it takes them to peel an orange (an easy to peel variety is recommended for in-class usage), what the orange weighs (possibly with and without the peel), and how many wedges are in the orange.  This creates a data set with both discrete (# of wedges) and continuous variables (time to peel, weight, percentage of orange weight in the peel) to be used for description. Other variables can be added through class discussion depending on student interest. An easy to peel variety of oranges

• ### Cartoon: The Mars Orbiter

A cartoon to initiate discussions about how the correlation is a unitless number that does not change with changes in the units of the variables involved.  The cartoon was created in February 2020 by British caetoonist John Landers based on an idea by Dennis Pearl (Penn State) and Larry Lesser (Univ of Texas at El Paso). An outline of a lesson plan for the use of the cartoon is given in a 2020 Teaching Statistics article by Dennis Pearl and Larry Lesser.

• ### Poem: Worry Lines

A poem written in 2019 by Larry Lesser from The University of Texas at El Paso to discuss the normal distribution and its percentiles.  Students could first be shown a copy of the National Center for Health Statistics growth chart graph paper so they will appreciate the details of the poem. And after reading or hearing the poem, students could verify the detail that the 40th and 60th percentiles are half a standard deviation apart. The poem is part of a collection of 8 poems published with commentary in the January 2020 issue of Journal of Humanistic Mathematics.

• ### Poem: This Function Dysfunction

A poem written in 2019 by Larry Lesser from The University of Texas at El Paso to discuss the simplest case of line of fit where the slope and correlation coefficients each have a value of 0.  The poem is part of a collection of 8 poems published with commentary in the January 2020 issue of Journal of Humanistic Mathematics.

• ### Poem: Fast Facts

A poem written in 2019 by Larry Lesser from The University of Texas at El Paso.   The poem can be a vehicle to discuss the terms and language and is part of a collection of 8 poems published with commentary in the January 2020 issue of Journal of Humanistic Mathematics.

• ### Cartoon: Statisticians' Favorite Uses of Pi

This pie chart was created by Lawrence Lesser of The University of Texas at El Paso to illustrate how a pie chart can display results of a (qualitative) survey question while intriguing students with (mostly, unexpected) connections between probability/statistics and the number π.

• ### Joke: Banana Peel

A joke to use in discussing the meaning of the slope in a linear trend.  The joke was written in May 2019 by Larry Lesser, The University of Texas at El Paso, and Dennis Pearl, Penn State University.

• ### Quote: Rogati on Data Scientists

"By definition all scientists are data scientists. In my opinion, they are half hacker, half analyst, they use data to build products and find insights. It’s Columbus meet Columbo - starry eyed explorers and skeptical detectives," is a quote by Romanian American Data Scientist Monica Rogati. The quote is from an interview published in Forbes magazine on November 27, 2011.

• ### Cartoon: The Prisoner

A cartoon that can be helpful in introducing time series plots and their interpretation.The cartoon was used in the December 2018 CAUSE cartoon caption contest and the winning caption was written by Greg Baugher from Mercer University, Penfield College. The cartoon was drawn by British cartoonist John Landers (www.landers.co.uk) based on an idea by Dennis Pearl from Penn State University.