Discover and read the best of Twitter Threads about #genoabridge

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There are lies, damned lies, and statistics: @BBCWorld #GenoaBridge edition. This chart should be shown in an introductory course of statistics as example of how stats can be tweaked to say pretty much anything, and the opposite (h/t @italiadati Original data is from @OECD) 1/
1st conceptual problem: the plotted variable is infrastructure investment in roads which, according to the data description "covers spending on NEW transport construction AND the improvement of the existing network." 2/
While interesting, it does not tell us whether the drop we see is due to (i) declining new investment or (ii) declining spending on existing network. Both things matter, but the relevance of them is different in the context of the #genoabridge story. 3/
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Genoa, Italy

Bridge collapse

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