Pig Data Longitudinal Analysis: Size Doesn't Matter

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via http://ma.tt/2014/03/statistical-validity-in-big-data

For each person George Gallup’s pollsters interviewed, The Literary Digest received 800 responses. All that gave them for their pains was a very precise estimate of the wrong answer.


More on big pigness: http://businesses.entrechat.org/2014/03/big-data-vs-pig-data/