Bad graph of the day

Another meaningless graph found in the November issue of La Recherche: a histogram of the predictions of the World population by 2005 attached to a brief discussion of the challenges of providing food for this population. No mention is made of the source(s) for this absurd agglomerate of predictions, (could I add mine as well?!) while the discussion picks the median prediction for its reference number: as if Science was run by majority rule… As an unflattering coincidence (for La Recherche!), the other French monthly popular science magazine Pour la Science has simultaneously published a rather well-argumented special issue on randomness (by Jaroslaw Strzalko, Juliusz Grabski and Tomasz Kapitaniak who are Polish physicists), refering to one recent paper by Persi Diaconis on the randomness of coin tosses. Being associated with Scientific American certainly helps in producing quality papers! (There is also a paper by Ivar Ekeland in the same issue, as well as the paper by Andrew Gelman already signaled.)

One Response to “Bad graph of the day”

  1. If the majority is wrong, who is right ?

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