gregp01 + statistics 89
Japan's nuclear crisis and the 2011 earthquake tsunami: Let's cool the political meltdown. - By William Saletan - Slate Magazine
march 2011 by gregp01
http://blogs.discovermagazine.com/badastronomy/2011/03/14/the-japanese-nuclear-reactor-overreaction/
http://market-ticker.org/akcs-www?post=182139
http://wordpress.mrreid.org/2011/03/12/situation-at-fukushima-nuclear-power-station/
http://www.boingboing.net/2011/03/12/nuclear-energy-insid.html
japan
japanese
nuclear
reactor
reactors
power
plant
plants
earthquake
tsunami
damage
crisis
reaction
explain
explanation
statistics
fossil
fuel
fuels
compare
comparison
awaymsgused
http://market-ticker.org/akcs-www?post=182139
http://wordpress.mrreid.org/2011/03/12/situation-at-fukushima-nuclear-power-station/
http://www.boingboing.net/2011/03/12/nuclear-energy-insid.html
march 2011 by gregp01
Math Puzzle « xkcd
february 2010 by gregp01
Alice secretly picks two different real numbers by an unknown process and puts them in two (abstract) envelopes. Bob chooses one of the two envelopes randomly (with a fair coin toss), and shows you the number in that envelope. You must now guess whether the number in the other, closed envelope is larger or smaller than the one you’ve seen.
Call the number you saw "x". Use the logistic function to calculate p(x)=1/(1+e^-x). Choose a random real number between 0 and 1. If it's lower than p(x), guess "lower". Otherwise, guess "higher".
In other words, guess "lower" with probability p(x), and "higher" with probability 1-p(x).
This works because p(x) is a function which is 0 at negative infinity, 1 at positive infinity, and increases monotonically in between. So for any pair of numbers, if you call the smaller one A and the larger one B, you have a (slightly) better chance of guessing “lower” if you saw B than if you saw A.
N = 0.5 * (1-p(A)) + 0.5 * p(B)
math
mathematics
maths
puzzle
guess
high
higher
low
lower
pair
number
numbers
better
chance
probability
statistics
logic
xkcd
Call the number you saw "x". Use the logistic function to calculate p(x)=1/(1+e^-x). Choose a random real number between 0 and 1. If it's lower than p(x), guess "lower". Otherwise, guess "higher".
In other words, guess "lower" with probability p(x), and "higher" with probability 1-p(x).
This works because p(x) is a function which is 0 at negative infinity, 1 at positive infinity, and increases monotonically in between. So for any pair of numbers, if you call the smaller one A and the larger one B, you have a (slightly) better chance of guessing “lower” if you saw B than if you saw A.
N = 0.5 * (1-p(A)) + 0.5 * p(B)
february 2010 by gregp01
Acquine
december 2009 by gregp01
http://live.psu.edu/story/39575
http://acquine.alipr.com/about.html
http://tech.slashdot.org/article.pl?sid=09/05/15/0613204
aesthetic
quality
inference
engine
computer
software
algorithm
judge
beauty
photo
photos
picture
pictures
photography
statistics
analysis
research
http://acquine.alipr.com/about.html
http://tech.slashdot.org/article.pl?sid=09/05/15/0613204
december 2009 by gregp01
the study
october 2009 by gregp01
http://arstechnica.com/business/news/2009/10/dram-study-turns-assumptions-about-errors-upside-down.ars?utm_source=rss&utm_medium=rss&utm_campaign=rss
http://hardware.slashdot.org/story/09/10/06/1732211/Google-Finds-DRAM-Errors-More-Common-Than-Believed?from=rss
google
dram
ram
ecc
dimm
dimms
memory
hardware
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error
errors
rate
fail
failure
statistics
reliability
study
http://hardware.slashdot.org/story/09/10/06/1732211/Google-Finds-DRAM-Errors-More-Common-Than-Believed?from=rss
october 2009 by gregp01
Scanning Dead Salmon in fMRI Machine Highlights Risk of Red Herrings | Wired Science | Wired.com
dead salmon fish fmri mri functional magnetic resonance imaging image images brain scan scans scanning statistics statistical method methods caution neuroscience research study humor awaymsgused
september 2009 by gregp01
dead salmon fish fmri mri functional magnetic resonance imaging image images brain scan scans scanning statistics statistical method methods caution neuroscience research study humor awaymsgused
september 2009 by gregp01
I was right then: Dissing experts is contemptible. (And some of my best friends are economists.) « The Edge of the American West
may 2008 by gregp01
financial times (london) 2/27/2004 - Sound economics requires respect for the facts: ERIC RAUCHWAY
economics
expert
experts
evidence
fact
facts
data
statistics
analysis
politics
policy
bureau
labor
may 2008 by gregp01
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