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Statistician Cracks Code For Lottery Tickets

Hugh Pickens writes writes "Lottery Post has an interesting story about Mohan Srivastava, an MIT educated statistician who became intrigued by a particular type of scratch-off lottery ticket called an extended-play game — sometimes referred to as a baited hook — that has a tic-tac-toe grid of visible numbers that looks like a miniature spreadsheet. Srivastava discovered a defect in the game: The visible numbers turned out to reveal essential information about the digits hidden under the latex coating. Nothing needed to be scratched off — the ticket could be cracked if you figured out the secret code. Srivastava's fundamental insight was that the apparent randomness of the scratch ticket was just a facade, a mathematical lie because the software that generates the tickets has to precisely control the number of winners while still appearing random. 'It wasn't that hard,' says Srivastava. 'I do the same kind of math all day long.'"

2 of 374 comments (clear)

  1. Re:breaking news by Anonymous Coward · · Score: 5, Interesting

    This just in: MIT-educated statistician Mohan Srivastava was sued for DMCA violations for demonstrating a trivial security flaw in lottery tickets.

  2. Coolest part of the article by artor3 · · Score: 5, Interesting

    After calculating that his average winnings would come out to $600 a day:

    "People often assume that I must be some extremely moral person because I didn't take advantage of the lottery," he says. "I can assure you that that's not the case. I'd simply done the math and concluded that beating the game wasn't worth my time."

    Moral of the story for those who play the lotto: Even if you figure out how to break the game, it still isn't worth playing.