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Plots quartiles of the answer score distribution as a function of answer length.

Q&A about the site for software engineers working on automated testing, continuous delivery, service integration and monitoring, and building SDLC infrastructure

SELECT AVG(LEN(Body)) as AverageLength,
       AVG(Score) AS AnswerScore,
       AVG(Score) + STDEV(Score) AS PlusOneSigma,
       AVG(Score) - STDEV(Score) AS MinusOneSigma
FROM Posts 
WHERE PostTypeId = 2
GROUP BY ROUND(LEN(Body), -2) ORDER BY ROUND(LEN(Body), -2)

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edited jul 24 14

created jul 24 14 Chris White