# Activities

## Class Survey

To get students started exploring data it is useful to have a survey
of the class. Here are two examples of surveys used, one at
Dartmouth and one at Grinnell.

Class Survey at Dartmouth College

Class Survey at Grinnell College

## Cookie Experiment

An activity that has been found quite successful
is to have students design an experiment to determine
if there is a significant correlation between their
rating of the cookies and the price.

Cookie Experiment

## Card Shuffling

Writing in a front page article in the New York Times (9 January 1990) Gina Kolata states:

It takes just seven ordinary, imprefect shuffles to mix a deck of cards thouroughly,
researchers have found. Fewer are not enough and more do not significantly improve
the mixing.

Peter Doyle has invented an interesting game that he calls Yin and
Yang. This game can be easily played by the class and illustrates
some limitations of this claim that "seven shuffles suffices".
John Finn tells you how Yin and Yang is played.
The New York Times article was based work of
Reeds, Bayer, and Diaconis to determine the number of
shuffles needed to have a well shuffled deck. You can
find discussions of this work in a paper by Brad Mann and
also in the Chapter 3 of Introduction to Probability by
Grinstead and Snell.

You can also find a True Basic computer program by John Finn to simulate
this game and a similar Mathematica program written by
Charles Grinstead in computer resources.

## Randomized Response

Randomized Response

Provided by Donald Bentley, Pomona College.

Meet Your Local Statistician

This is an activity sent to us by Melinda Harder of Bates College, who asked her students to report on interviews with area statisticians.