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Tag: fivethirtyeight

Rolling some dices

Rolling some dices

Today, a quick post trying to provide an answer to this week Riddle Classic on FiveThirtyEight : The fifth edition of Dungeons & Dragons introduced a system of “advantage and disadvantage.” When you roll a die “with advantage,” you roll the die twice and keep the higher result. Rolling “with disadvantage” is similar, except you keep the lower result instead. The rules further specify that when a player rolls with both advantage and disadvantage, they cancel out, and the player rolls a single die….

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Les sondeurs se copient, vraiment ? (le herding)

Les sondeurs se copient, vraiment ? (le herding)

Un tweet de Nate Silver posté ce lundi semble avoir déchaîné les passions de nombreux observateurs : I continue to worry about the lack of variation in French election polls. Polls shouldn't be this consistent unless there's massive herding. pic.twitter.com/Xgd8dNUytN — Nate Silver (@NateSilver538) April 17, 2017 Dans ce gazouillis, Nate Silver (célèbre analyste statistique américain, rédacteur en chef du site fivethirtyeight.com) remarque que les estimations des intentions de vote par les instituts de sondage français sont assez proches les…

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Riddler and Voter Power Index

Riddler and Voter Power Index

Oliver Roeder has a nice puzzle: the riddler. Just like last week, this week’s puzzle has an interesting application to the US Election and I enjoyed it really much, so I figured I might just write a blog post 🙂 In this article, we’ll solve this week’s riddler two different ways (just because :p) and discuss an indicator used on FiveThirtyEight’s prediction model for the election: the Voter Power Index. Exact solution and Stirling approximation I won’t write again the problem and notations,…

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