Lottery Mathematics - Minimum Number of Tickets For A Match

Minimum Number of Tickets For A Match

It is a hard, in most cases open, mathematical problem to calculate the minimum number of tickets one needs to purchase to guarantee that at least one of these tickets matches at least 2 numbers. In the 5-from-90 lotto, the minimum number that can guarantee a ticket with at least 2 matches is 100.

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    There are ... two minimum conditions necessary and sufficient for the existence of a legal system. On the one hand those rules of behavior which are valid according to the system’s ultimate criteria of validity must be generally obeyed, and on the other hand, its rules of recognition specifying the criteria of legal validity and its rules of change and adjudication must be effectively accepted as common public standards of official behavior by its officials.
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    Charging a man with murder in this place was like handing out speeding tickets at the Indy 500.
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    Friedrich Nietzsche (1844–1900)