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@probfact
twitter.com/probfact
One probability fact per day M-F from @JohnDCook. See link for similar Twitter streams.
613 Posts by probfact
How to test a random number generator — The Endeavour
johndcook.com/blog/2010/12/06/how-to-test-a-random-number-generator-2/
probfact
Probability Fact
How to test a random number generator
http://t.co/jUTEQWS5
21 hours ago
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Random inequalities VIII: folded normals — The Endeavour
johndcook.com/blog/2009/07/13/random-inequalities-folded-normal/
probfact
Probability Fact
The 'folded normal' distribution is the distribution on the absolute value of a normal random variable
2 days ago
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Achievement is not normal — The Endeavour
johndcook.com/blog/2009/09/29/achievement-is-log-normal/
probfact
Probability Fact
The product of two normal random variables sometimes has an approximately normal distribution
5 days ago
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Student-t as a mixture of normals — The Endeavour
johndcook.com/blog/2009/10/30/student-t-mixture-normals/
probfact
Probability Fact
You can write a Student-t distribution as a continuous mixture of normal distributions
6 days ago
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Achievement is not normal — The Endeavour
johndcook.com/blog/2009/09/29/achievement-is-log-normal/
probfact
Probability Fact
The product of two log-normal random variables has a log-normal distribution
7 days ago
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probfact
Probability Fact
Bayes theorem is easy to prove, hard to understand.
8 days ago
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23
Two Hamiltonian Monte Carlo papers
radfordneal.wordpress.com/2012/05/21/two-hamiltonian-monte-carlo-papers/
probfact
Probability Fact
Two Hamiltonian Monte Carlo papers
http://t.co/Msa5XDmc
9 days ago
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Sleeping Beauty Probability Problem via
wmbriggs.com/blog/?p=5308
probfact
Probability Fact
Sleeping beauty probability problem
http://t.co/9KnceCHn
9 days ago
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probfact
Probability Fact
Legendre published the method of least squares in 1805.
12 days ago
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14
Normal tail probability bounds — The Endeavour
johndcook.com/blog/2009/10/22/normal-tail-probability-bounds/
probfact
Probability Fact
The CDF of a normal distribution has upper and lower bounds that look like the normal PDF
13 days ago
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