World’s Strangest

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A Statistician Solves a Scratch Lottery Code

A Canadian geological statistician came to the realization that the numbers on some scratch lottery cards could not be random. “It wasn’t that hard,” Srivastava says. “I do the same kind of math all day long.” “… I start looking at the tic-tac-toe game, and I begin to wonder how they make these things,” Srivastava says. [...]

How Random are Scratch-Off Lotto Tickets?

I’m not a lottery player — I don’t like throwing my money down a statistical hole in the ground — but I’ll admit that on occasion I have been the recipient of a scratch-off lottery ticket, and I have scratched it, and haven’t won anything. What a bummer. But I recall one occasion as a [...]