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Chi-Squared Goodness of Fit Test for LotteriesReply
Interesting! California Lottery's PRNG used to involve randomly choosing between a hardware RNG (one that derived random numbers from atmospheric noise or nuclear decay or some other physical process) and a garden-variety PRNG algorithm. On any given day the daily numbers could have come from the piece of hardware or an algorithm. I don't know if they still do it that way, they removed a lot of information from the website during a revamp a couple years ago. For example, now you can't even get m
Feb 3, 2023, 11:38 am - cottoneyedjoe - Mathematics Forum

figuring out how many Scratchers there are in a given game?Reply
Are you trying to buy up all the remaining tix for a game that still has top prizes unclaimed? I don't know about the Idaho lottery, but I know that with the California lottery, they update the scratchers pages when a prize is claimed , not when it is sold . That means it is possible for all the top prizes to be gone, even if the page reports that some are still unclaimed. The reason being that players might hold on to a winning ticket for a while before heading to a regional claims office.
Jan 13, 2023, 12:59 am - cottoneyedjoe - Mathematics Forum

Win the Lottery - Your Retirement Strategy (or maybe not)!Reply
Yep, good point. You'll get something back for lower-tier wins. Also, you gotta love how the (U.S.) income tax system works on this. You pay top marginal rate on all net wins, but can't deduct any net loss, and your (gambling) losses only offset against wins for losses within the same calendar year. If you win the PB or MM Jackpot in a state like California, you will probably be paying ~55% tax (combined State and Federal). Next thing will be The Bern and Pocahontas going after Social Securit
Jul 21, 2022, 5:28 pm - Orange71 - Mathematics Forum

How many repeat combinations in Cash 5Reply
93 times in the more than 8100 drawings of CT Cash5 have two sets of five numbers been drawn twice. There have been three times in Cash5 where a set of five numbers has been drawn THREE times. They are 1 17 27 28 34 which was drawn on 7/31/2003, 2/28/2015 7/21/2021. 2 18 26 28 30 was drawn on 4/1/2001, 4/4/2008 1/23/2020. 21 22 25 28 30 was drawn on 8/19/2014, 8/24/2018 11/15/2018. While it may surprise you to have learned there have been 93 times in CT Cash5 where the same set of five n
Sep 11, 2022, 8:58 am - GiveFive - Mathematics Forum