What's the main device to hammer in a nail?

Comments

• hakase@sh.itjust.works ⁨3⁩ ⁨minutes⁩ ago

  According to my mathematician wife, “it’s got the same problem most paradoxes do in that it’s self-referential”.

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• dohpaz42@lemmy.world ⁨14⁩ ⁨minutes⁩ ago

  Since it’s Fry answering the question, the answer is B 0%.

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• Triumph@fedia.io ⁨1⁩ ⁨hour⁩ ago

  All right, let's break this down.

  For this question, for these available answers, choosing at random:

  First glance says the correct percentage is 25%. There are four answers, you get to pick one.

  However, two of the answers are 25%. This means you have a 50% chance of picking an answer that's right.

  Which makes the correct answer C: 50%.

  But there's only one answer that's "50%", so you have a 25% chance of picking that one.

  Which makes the correct answer "25%", so you have a 50% chance of picking that one.

  If we consider that "two answer" equation, we can then consider the correct percentage to be "37.5%" -- halfway between 25% and 50%. That makes the correct answer from the available answers to be B: 0%.

  And you have a 25% chance of picking that one at random. So we go back to the beginning, where the correct percentage is 25%.

  I think we need to get Matt Parker on this one.

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  • Artisian@lemmy.world ⁨1⁩ ⁨hour⁩ ago

    They don’t say that the random answer is chosen uniformly (though that is the norm in the field). If we relax that, then we’re putting a distribution on these where we want:

    P(correct with distribution (a,b,c,d)) = some value shown on A,B,C,D

    I don’t see any assumption that we will pick using that distribution, so I think this avoids the recursion.

    Unfortunately this has too many solutions. If you put a total of 0.25 weight on A and D, then the rest does not matter. If you put 0.5 weight on C, again the rest is irrelevant.

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    • Triumph@fedia.io ⁨1⁩ ⁨hour⁩ ago

      You've added details that aren't in the question. It's like asking what are the odds of rolling a "one" on a 1d4, and then saying "Well, if it's not a fair 1d4, then ..."

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  • Soup@lemmy.world ⁨34⁩ ⁨minutes⁩ ago

    There’s also, I think, the weird fucky option were 75% sorta works because the 25% applies to choosing 50% and 50% applies to choosing 25% which means that as long as you don’t choose 0% you’re good?

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• yesman@lemmy.world ⁨2⁩ ⁨hours⁩ ago

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  It’s a bullshit question

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• wander1236@sh.itjust.works ⁨2⁩ ⁨hours⁩ ago

  It doesn’t say for this question, so 25%

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  • just2look@lemmy.zip ⁨2⁩ ⁨hours⁩ ago

    If it isn’t for this question, then its unknown how many options you have for the question.

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    • wander1236@sh.itjust.works ⁨2⁩ ⁨hours⁩ ago

      Damn

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• Aedis@lemmy.world ⁨46⁩ ⁨minutes⁩ ago

  It’s 50/50 either you get it right or you don’t duh.

  /s in case someone didn’t realize it

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• cypherpunks@lemmy.ml ⁨1⁩ ⁨hour⁩ ago

  “is this a pigeon?” butterfly meme, captioned “is this numberwang?”

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  • funkless_eck@sh.itjust.works ⁨1⁩ ⁨hour⁩ ago

    let’s rotate the board!

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• NichEherVielleicht@feddit.org ⁨2⁩ ⁨hours⁩ ago

  Image

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• Kolanaki@pawb.social ⁨1⁩ ⁨hour⁩ ago

  I have a 100℅ chance to get this answer right.

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• Windex007@lemmy.world ⁨1⁩ ⁨hour⁩ ago

  NAIL. FINAL ANSWER!

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  • NichEherVielleicht@feddit.org ⁨49⁩ ⁨minutes⁩ ago

    Image

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• seaplant@slrpnk.net ⁨1⁩ ⁨hour⁩ ago

  Simpler version that fits comfier in my head:

  What’s the opposite of the correct answer to this question?

  • A) There’s no correct answer
  • B) There is a correct answer

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• hemko@lemmy.dbzer0.com ⁨1⁩ ⁨hour⁩ ago

  0%

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• Xanthrax@lemmy.world ⁨1⁩ ⁨hour⁩ ago

  25/ 25 cancel each other. 50%.

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  • JohnnyCanuck@lemmy.ca ⁨3⁩ ⁨minutes⁩ ago

    But there’s only one 50. What if you pick 0?

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