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Allen Downey
Worked at Olin College
Attended University of California, Berkeley
Lives in Needham, MA
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Allen Downey

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Bayes theorem in real life
I had a chance to practice Bayesian inference in real life today: at 1pm my wife called to tell me that the carbon monoxide (CO) alarm at the house was going off.  Immediately two hypotheses came to mind: (1) there is a dangerous amount of CO in my house, (...
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I have not.  Thanks for the suggestion!
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Orange is the new stat
I've been reading Piper Kerman's  Orange Is the New Black , a memoir by a woman who served 11 months in a federal prison.  One of the recurring themes is the author's surprise at the length of the sentences her fellow prisoners are serving, especially the o...
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Slides and video from my presentation at SciPy.
Last week I was at SciPy 2015 in Austin, where I presented a short talk about Think DSP and the class based on it: "Basic Sound Processing in Python".  The slides for the talk are here.  The SciPy organizers did an amazing jo...
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Tired of being productive?  Why not waste the afternoon on a veridical paradox?
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A followup to "Statistical inference is only mostly wrong".
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Just in time for the marathon, a guest article from Cypress Frankenfeld.
Last fall I taught an introduction to Bayesian statistics at Olin College.  My students worked on some excellent projects, and I invited them to write up their results as guest articles for this blog.  Previous articles in th...
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Allen Downey

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The Inspection Paradox is Everywhere
The following is a draft of an article I have submitted for publication in CHANCE Magazine , a publication of the American Statistical Association. With their encouragement, I am publishing it here to solicit comments from readers (and possibly corrections...
The following is a draft of an article I have submitted for publication in CHANCE Magazine, a publication of the American Statistical Association. With their encouragement, I am publishing it here to solicit comments from rea...
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Will Millennials Ever Get Married?
At SciPy last week I gave a talk called "Will Millennials Ever Get Married?  Survival Analysis and Marriage Data".  I presented results from my analysis of data from the National Survey of Family Growth (NSFG).   The slides I presented are here . The video ...
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I know. I was thinking how crazy that is. I interview some people at conventions and if I have 10 videos I'm lucky to get them all up within a week. I can't imagine turning around 120 videos within a couple days.
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Bayesian Billiards
I recently watched a  video of Jake VanderPlas explaining Bayesian statistics at SciPy 2104 .  It's an excellent talk that includes some nice examples.  In fact, it looks like he had even more examples he didn't have time to present. Although his presentati...
I recently watched a video of Jake VanderPlas explaining Bayesian statistics at SciPy 2104.  It's an excellent talk that includes some nice examples.  In fact, it looks like he had even more examples he didn't have time to pr...
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The Sleeping Beauty Problem
How did I get to my ripe old age without hearing about The Sleeping Beauty Problem?  I've taught and written about The Monty Hall Problem and The Girl Named Florida Problem .  But I didn't hear about Sleeping Beauty until this reddit post , pointing to this...
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Hypothesis testing is only mostly useless
In my previous article I argued that classical statistical inference is only mostly wrong . About null-hypothesis significance testing (NHST),  I wrote: “If the p-value is small, you can conclude that the fourth possibility is unlikely, and infer that the ...
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Two hour marathon by 2041 -- probably
Last fall I taught an introduction to Bayesian statistics at Olin College.  My students worked on some excellent projects, and I invited them to write up their results as guest articles for this blog.  Previous articles in the series are: Bayesian predictio...
Last fall I taught an introduction to Bayesian statistics at Olin College.  My students worked on some excellent projects, and I invited them to write up their results as guest articles for this blog.  Previous articles in th...
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In his circles
54 people
Have him in circles
531 people
Rey Diaz's profile photo
方舒怀's profile photo
Mike Mull's profile photo
Robert Chew's profile photo
Sayed Hassibullah Deliry's profile photo
Jhessika Munich's profile photo
Simon Mbuthia's profile photo
Mark Lamourine's profile photo
lucy li's profile photo
Work
Occupation
Professor
Employment
  • Olin College
    Professor of Computer Science
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Map of the places this user has livedMap of the places this user has livedMap of the places this user has lived
Currently
Needham, MA
Previously
Needham, MA - Waterville, ME - San Diego, CA - Oakland, CA
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Professor of Computer Science at Olin College
Introduction
I am a Professor of Computer Science at Olin College and author of Think Python, Think Stats, Think Bayes, Think Complexity, and more to come.
Education
  • University of California, Berkeley
    Computer Science
Basic Information
Gender
Male