2 ms·

Supermarket checkout with a round amount feels like winning some lottery, admittedly.

• SpaceNoodled 8mo ago
  You'd think that it would happen around 1% of the time, but it doesn't seem to.
  • randallsquared 8mo ago
    Prices aren't random, after all.
    • SpaceNoodled 8mo ago
      Yes, but how random is the number of items purchased?
      • randallsquared 8mo ago
        Not, even if you only consider between one and a hundred, it'll be strongly tilted toward low numbers, which means that prices, which are typically like X.49 or X.99 or more rarely X.00, will often float in the aggregate in the 40s or 90s before sales taxes in places that have them. So, if there is no sales tax, one would expect a strong band just under $1 or 50 cents, and if there are, it'll be more complicated, but still not evenly distributed across all possible cents.