onsdag 18 december 2013

Filter like it's 1999

Justin Wolfers länkade nyligen till följande diagram över bilpriser kontra mätarställning [samtliga bilder klickbara för viss förstoring]:
Bilar som gått inte fullt exempelvis 50 000 miles (cirka 8000 mil) säljs alltså märkbart dyrare än de som gått lite drygt samma sträcka.

Vidare på samma tema - från Code and Culture - låtlängd vad gäller Billboardhits 1960-2008:
Där det alltså är en stor överrepresentation precis före 3 minuter och precis före 4 minuter - ur inlägget:
Breaking it up by decade makes it clear that the “bit under three minutes” mode is disproportionately songs from the 1960s and the “bit under four minutes” mode from subsequent periods. This makes sense when you realize that the dominant technological format of the 1960s was the 7-inch 45rpm single, which had a limit of three minutes. In contrast, 45s were less commercially important in subsequent periods and such technological formats as 12 inch 33rpm LPs, cassettes, CDs, and MP3s have no such time limitation that would reasonably matter for a single song. Moreover, there were also changes in radio. Genre-based radio formats were given a big boost in the late 1960s with the commercialization of the FM band and 1970s era formats like “Album-Oriented Rock” allowed for airplay that was more, well, album-oriented in terms of drawing cuts from LPs and not just 7 inches.
Och statistik från dejtingsajten OKCupids blogg - angiven längd hos sidans män:
Där det alltså är en kraftig överrepresentation av sexfotare - samma form av längdavrundning är även utbredd i NBA - ur det fantastiska Econtalkavsnittet med David Epstein om sport och gener:
Guest: While I was doing this data[?], I was figuring out how NBA listings actually work. So, most guys who are listed at 7 feet--listed as 7'--in the NBA; you know, when they show it on TV--are actually about 6'10.5". What happens is at the Combine they make them do real measurements, where they have to take their shoes off and get measured. But then for some reason they also measure them with their shoes on. You know, as if they could just get taller shoes and change that measurement. But what guys do in their reported height usually is they take their shoes-on height from the measurements. So, say they are 6'10.5". And with their shoes on they are 6'11.25". And then they round it up to the next inch, so 6'10.5" goes to 7' in most cases.

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