My Math Forum Lotto and Avg. # of tickets.

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 August 27th, 2008, 12:19 PM #1 Newbie   Joined: Aug 2008 Posts: 1 Thanks: 0 Lotto and Avg. # of tickets. I'm trying to make a point about the lottery to a friend. Essentially I'm trying to estimate the average number of tickets that an individual would have to buy before they got a winning ticket, assuming that the odds of any one ticket being a winner are 1 in 146,107,962. How do I calculate that?
 August 30th, 2008, 08:48 AM #2 Newbie   Joined: Jun 2008 Posts: 18 Thanks: 0 Re: Lotto and Avg. # of tickets. He'd need to buy 146,107,962 tickets then. I don't understand what average you want, but if you mean someone like, average tickets per day for one year, you'd do: $\frac{146107962}{365}$

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