Post AwZHtQrt0J6vlcmKh6 by nholzschuch@piaille.fr
 (DIR) More posts by nholzschuch@piaille.fr
 (DIR) Post #AwZHtPe1YMQbyLHkRs by nholzschuch@piaille.fr
       2025-07-27T18:21:14Z
       
       0 likes, 0 repeats
       
       Math question: I have an external battery, that occasionally displays the charge level. Except I don't know which side is up, and it seems every time I look at it the number can be read either way. Am I just unlucky or is that statistically likely?
       
 (DIR) Post #AwZHtQrt0J6vlcmKh6 by nholzschuch@piaille.fr
       2025-07-27T18:24:12Z
       
       0 likes, 0 repeats
       
       (We're talking about percentage, so it's from 0 to 99, maybe 00 for 100)
       
 (DIR) Post #AwZHtSBQ7AKXqUvRmS by feliks@chaos.social
       2025-07-27T18:45:39Z
       
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       @nholzschuch the probability of misreading numbers on a charge displayed as 01-100 is 42% if you're hand-wavy about the position of the 1
       
 (DIR) Post #AwZHtT0p23RmPuyUts by antoinechambertloir@mathstodon.xyz
       2025-07-27T19:07:24Z
       
       1 likes, 0 repeats
       
       @nholzschuch The 6 digits that can be read both sides are 0, 2, 5, 6, 8 and 9. This makes 36%, if you assume that numbers less than 10 are written with a leading 0. If they don't, then it's only 30%.Now you may include the 1 which, as observed by @feliks is usually placed on the right, so it can't really be confused with its upside-down version, but let's pretend it can. Then it's 49% (with leading 0s) or 42% (without).