5 posts tagged with Mathematics by Foci for Analysis.

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A/B testing has become a familiar term for most people running web sites, especially e-commerce sites. Unfortunately, most A/B test results are illusory (PDF, 312 kB). Here's how not to run an A/B test. Do use this sample size calculator or this weird trick.

posted by Foci for Analysis on Feb 23, 2014 - 38 comments

posted by Foci for Analysis on Feb 23, 2014 - 38 comments

The fine people over at the International Guild of Knot Tyers Forum talk knots. On Mars.

posted by Foci for Analysis on Sep 4, 2012 - 33 comments

posted by Foci for Analysis on Sep 4, 2012 - 33 comments

In Russian roulette, is it best to go first? | The Mathematics of Tetris | What is the result of infinity minus infinity? [more inside]

posted by Foci for Analysis on May 14, 2012 - 30 comments

posted by Foci for Analysis on May 14, 2012 - 30 comments

Henry Segerman creates mathematical sculptures using 3D printing:
Round Möbius Strip,
Hopf Fibration,
Half of a 120-cell,
Rectified Tesseract,
Tesseract and 16-cell,
Hilbert Curve,
Knotted Cogs,
Round Klein Bottle [more inside]

posted by Foci for Analysis on Sep 10, 2011 - 12 comments

posted by Foci for Analysis on Sep 10, 2011 - 12 comments

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