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My $1 bill has no repeating decimals in its serial number (sh.itjust.works)
submitted 1 month ago by to c/mildlyinteresting@lemmy.world
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[–] 4 points 1 month ago (1 child)

Someone figure out the probability!

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  • [–] 13 points 1 month ago (1 child)

    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.

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  • [–] 5 points 1 month ago (1 child)

    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.

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