181
My $1 bill has no repeating decimals in its serial number (europe.pub)
submitted 4 months ago by to c/mildlyinteresting@lemmy.world
47 comments fedilink hide all child comments
 
you are viewing a single comment's thread
view the rest of the comments
[–] 4 points 4 months ago (4 children)

Someone figure out the probability!

  • permalink
  • fedilink
  • source
  • hideshow 4 child comments
    •
  • [–] 13 points 4 months ago (3 children)

    If I remember high school math correctly, The first digit can be anything so, 10/10 options, the second digit cant be be the first so only 9/10 options, then 8/10 for the third, continue this pattern for each digit and multiply together you get 1.8% chance.

  • permalink
  • fedilink
  • source
  • parent
  • hideshow 3 child comments
    •
  • [–] 5 points 4 months ago (2 children)

    10 x 9 x 8... etc. yields 1,814,400 possible combinations of no repeats, right? I'm confused what the "whole" is if this is expressed as a percent.

  • permalink
  • fedilink
  • source
  • parent
  • hideshow 2 child comments
    •