Discussion:  All Tools in Probability & Statistics on JavaScript 
Topic:  Pickablock tool (middle level) 
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Subject:  RE: Pickablock tool (middle level) 
Author:  Craig 
Date:  Nov 17 2004 
Whether to include or not include theoretical information is up to you... how do
you want to use the tool? I would point out that Shodor has an applet named
"marbles" at
< http://www.shodor.org/interactivate/activities/marbles/index.html >
that is similar to what your applet does (but with only four color choices, and
only one, two, or three marbles per draw); Shodor's gives experimental and
theoretical probabilities.
Similar (but less visual) applets are available in the NCTM "Illuminations" at
< http://illuminations.nctm.org/index_d.aspx?id=448 > and at the University of
Illinois' "Stats 100" page,
< http://www.stat.uiuc.edu/courses/stat100/cuwu/boxmodel.html >. Both of these
use "box models," where the boxes consist of useddetermined numbers of balls,
each with specified values (yours specifies color instead of value). These give
histograms...
 
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