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Meyer Dice Tube - Randomness Tested

Posted By: Brett Meyer
Date: Thursday, 8 November 2012, at 3:12 a.m.

In Response To: Meyer Dice Tube - Randomness Tested (Nick Kravitz)

The data posted on my website of the "3000-flips" randomness trial were the result of my wife & I spending 3 days (Saturday, Sunday & a holiday Monday) flipping a red & a blue die in a 9" tall, 2" ID acrylic tube with NO baffles/rods. Therefore, the trial emulated simply dropping 2 dice onto a flat surface from a height of 9", with the only "randomizing" effect being the interaction of the 2 dice & the contact/rebound with the interior surface of the tube. The result of each flip was recorded using an Excel spreadsheet.

Neither of us are statisticians, but the results looked fairly random to us. The data was published so that those who are indeed statisticians could crunch the numbers and provide an analysis of our results. The trial was conducted with a tube without baffles even though I was in the process of designing a tube containing baffles. The reason was that if randomness could be achieved without baffles, certainly the addition of baffles could not reduce the randomness.

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