Great short blog here from John D. Cook in which he – and a commenter – show it is not such a difficult task after all – if you are clever enough to enter an odd number that doesn’t end in 5 then you have an approximately 9% chance of moving ahead.

Great short blog here from John D. Cook in which he – and a commenter – show it is not such a difficult task after all – if you are clever enough to enter an odd number that doesn’t end in 5 then you have an approximately 9% chance of moving ahead.

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