Posts Tagged ‘ Current Affairs ’

What if the RNC assigned seating randomly

July 21, 2016
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What if the RNC assigned seating randomly

The punditry has spoken: the most important data question at the Republican Convention is where different states are located. Here is the FiveThirtyEight take on the matter: They crunched some numbers and argue that Trump's margin of victory in the...

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A multidimensional graphic that holds a number of surprises, via NYT

May 24, 2016
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A multidimensional graphic that holds a number of surprises, via NYT

The New York Times has an eye-catching graphic illustrating the Amtrak crash last year near Philadelphia. The article is here. The various images associated with this article vary in the amount of contextual details offered to readers. This graphic provides...

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Tip of the day: don’t be Theranosed

May 23, 2016
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Theranos (v): to spin stories that appeal to data while not presenting any data To be Theranosed is to fall for scammers who tell stories appealing to data but do not present any actual data. This is worse than story time, in which the storyteller starts out with real data but veers off mid-stream into unsubstantiated froth, hoping you and I got carried away by the narrative flow. Theranos (n):…

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Super-informative ping-pong graphic

May 11, 2016
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Super-informative ping-pong graphic

Via Twitter, Mike W. asked me to comment on this WSJ article about ping pong tables. According to the article, ping pong table sales track venture-capital deal flow: This chart is super-informative. I learned a lot from this chart, including:...

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Dreadful analysis shows the importance of numbersense

May 9, 2016
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Last year, Gizmodo capitalized on the fallout from the Ashley Madison hacking scandal and published a sensational article claiming the website that, if you haven't heard, promotes adultery, has "almost no" real women on it. The subtext is that millions of gullible, disloyal males were paying monthly fees to the website to do nothing or, cue the laugh track, to converse with "badly-designed robots." These men, according to Gizmodo, were…

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Dreadful analysis shows the importance of numbersense

May 9, 2016
By

Last year, Gizmodo capitalized on the fallout from the Ashley Madison hacking scandal and published a sensational article claiming the website that, if you haven't heard, promotes adultery, has "almost no" real women on it. The subtext is that millions of gullible, disloyal males were paying monthly fees to the website to do nothing or, cue the laugh track, to converse with "badly-designed robots." These men, according to Gizmodo, were…

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The day after the shock: pollsters, forecasters scratch their heads

March 11, 2016
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Pollsters, forecasters, and the likes were embarrassed by the Bernie Sanders upset in Michigan Tuesday night. Nate Silver called it among the greatest polling error in primary history. Now, they are struggling to explain the big miss. Recall the polls conducted close to the contest showed a Clinton lead of about 20 percent points. The actual outcome was a gap of 1.5 points, with a million votes cast. This type…

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How do you react to a probability forecast?

March 9, 2016
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How do you react to a probability forecast?

There is a healthy debate going on about last night's Michigan primary on the Democratic side, in which Bernie Sanders pulled off a major upset. Polls leading up to the primary put Hillary Clinton ahead by about 20 percent points. That would be a huge margin. Fivethirtyeight, which has been doing a stellar job covering the elections, uses polls heavily in generating forecasts, and they had predicted that Clinton would…

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How to get fired, the data scientist edition

March 7, 2016
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Investors of Herbalife (HLF) are owed a full explanation of the metrics disaster that the management disclosed suddenly to the SEC last week. As a regulator, the SEC should be requesting much more information about what happened. (Click on the 8K filed in March 2016. Here is the LA Times article.) On Feb 25, Herbalife management held an earnings call to discuss 2015 4th quarter and full year results. Investors…

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Light entertainment: crime is no joke

February 5, 2016
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Light entertainment: crime is no joke

(via twitter) When I saw this on my twitter feed, I thought this must be a joke. But click here and check out the entire collection of them.

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