Stuart Coles

A while back I set a puzzle asking you to try to remove three coins from a red square region as shown in the following diagram. The only rule of the...

  Here we go again... Happy birthday to me. And Harry and Rickie. And Will, who also used to be in the quant team. What a remarkable...

  Consider the following scenario... A football expert claims that penalties are converted, on average, with a 65% success rate. I collect a...

    Usually when I've posted puzzles to the blog the've had a basis in Probability or Statistics. One exception to this was the mutilated...

  A while ago I sent a post with a card trick which I explained had a statistical element to it, and asked you to try to work out how it was...

  A while back I posted a puzzle based on a suggestion by Fabian in which Smartodds employees are - hypothetically - given the opportunity to...

  Last week, when discussing Kipchoge's recent sub 2-hour marathon run, I showed the following figure which compares histograms of marathon...

  A while back the Global Drug Survey (GDS) produced its annual report. Here are some of the newspaper headlines following its publication:...

  Do you run a bit? If so, chances are you can run 100 metres in 17 seconds. Which puts you in the same class as the Kenyan marathon runner...

  Here's a statistical card trick. As I try to explain in the video, admittedly not very clearly, the rules of the trick are as follows: Matteo...

  You remember that thing about well-produced statistical diagrams telling their own story without the need for additional words? Well, the...

  No one seriously now doubts that cigarette smoking increases your risk of lung cancer and many other diseases, but when the evidence for a...