- Tax Hacks 2015: Don’t Overlook These 8 Deductions and Credits
- Where to Sell Your Stuff for Top Dollar
- ‘Nips and Tucks’ to Get Your Tablet Computer Running Like New
- Best and Worst Things to Buy in March
- Americans Love Nordstrom, Costco and Amazon, And Then There’s Wal-Mart …
- 6 Ways to Make Cheap Foods Taste Delicious
The Smithsonian reports…
Diaconis is a professor of mathematics and statistics at Stanford University and, formerly, a professional magician. While his claim to fame is determining how many times a deck of cards must be shuffled in order to give a mathematically random result (it’s either five or seven, depending on your criteria), he’s also dabbled in the world of coin games. What he and his fellow researchers discovered (here’s a PDF of their paper) is that most games of chance involving coins aren’t as even as you’d think. For example, even the 50/50 coin toss really isn’t 50/50 — it’s closer to 51/49, biased toward whatever side was up when the coin was thrown into the air.
But more incredibly, as reported by Science News, spinning a penny, in this case one with the Lincoln Memorial on the back, gives even more pronounced odds — the penny will land tails side up roughly 80 percent of the time.
So next time you have to settle something with a coin toss, offer to do a coin spin. (Now that you know how to win most of the time.)