Sandbox: Difference between revisions

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==A coin puzzles==
[A coin problem]
<blockquote>
Consider this simple game: flip a fair coin twice. You win if you get two heads, and lose otherwise. It’s not hard to calculate that the chances of winning are 1/4.
<br><br>
Your challenge is to design a game, using only a fair coin, that you have a 1/3 chance of winning.
</blockquote>
Continues "And here is my recipe for getting the most out of this problem: if you can solve it, do not stop with one answer. Rather, see how many answers you can come up with. I’ve posed this problem to many people, and I continue to hear novel solutions."


[http://wordplay.blogs.nytimes.com/2014/03/24/urn/ A large urn]<br>
==Numbers with painting==
by Gary Antonik, Numberplay blog, ''New York Times'', 24 March 2014
Bob Griffin sent a link to:


<blockquote>
[http://fivethirtyeight.com/features/a-statistical-analysis-of-the-work-of-bob-ross/ A statistical analysis of the work of Bob Ross]<br>
There are 600 black marbles and 400 white marbles mixed well in a large urn. You draw marbles one by one at random without replacement until you take out all the marbles of one of the colors. What is the probability that at least one white marble will be left in the urn?
by Walt Hickey, FiveThirtyEightLife blog, 14 April 2014
<br><br>
Bonus: On average, how many marbles will be left in the urn?
</blockquote>


Submitted by Bill Peterson
Ross was painter on the PBS series, “The Joy of Painting." He starred in 403 episodes that originally aired from 1983-1994, and are still showing in reruns.
The blog post give the following graphic showing how often various elements appeared in Ross's pairings. 
: [[File:Hickey-ross.png | 389px]]
 
To be continued...

Revision as of 18:03, 22 April 2014

Numbers with painting

Bob Griffin sent a link to:

A statistical analysis of the work of Bob Ross
by Walt Hickey, FiveThirtyEightLife blog, 14 April 2014

Ross was painter on the PBS series, “The Joy of Painting." He starred in 403 episodes that originally aired from 1983-1994, and are still showing in reruns. The blog post give the following graphic showing how often various elements appeared in Ross's pairings.

Hickey-ross.png

To be continued...

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