Your average science guy, Linux nerd, and Minecraft player. Left Reddit for this place and haven’t looked back. :)

Website: lostxor.com

  • 10 Posts
  • 293 Comments
Joined 1 year ago
cake
Cake day: March 3rd, 2024

help-circle








  • You’re right! Let’s say we have two dice:

    D₁ is fair and has a 1/6 probability of rolling each number from 1-6.
    D₂ is weighted, with probabilities P₁, P₂, P₃, P₄, P₅, P₆ to roll each number.

    We roll D₁, and get a number with the following probability distribution:
    1: 1/6
    2: 1/6
    3: 1/6
    4: 1/6
    5: 1/6
    6: 1/6

    We roll D₂, and get a number with the following probability distribution:
    1: P₁
    2: P₂
    3: P₃
    4: P₄
    5: P₅
    6: P₆

    We find the probabilities of every combination of rolls that yields a 7:
    1+6: 1/6 P₁
    2+5: 1/6 P₂
    3+4: 1/6 P₃
    4+3: 1/6 P₄
    5+2: 1/6 P₅
    6+1: 1/6 P₆

    Adding these together to get the total probability of rolling a 7, we get 1/6 (P₁ + P₂ + P₃ + P₄ + P₅ + P₆). Since the probabilities of rolling each number must sum to 1, we get a probability of 1/6 to roll a 7, and your gut is right. :)

    7 is the only number where this property holds. Other numbers will have a probability dependent on the weighting of the die, which could be calculated with a similar method.




  • LostXOR@fedia.iotoAsk Lemmy@lemmy.world*Permanently Deleted*
    link
    fedilink
    arrow-up
    17
    arrow-down
    2
    ·
    7 days ago

    I promise, I’ll end up setting up a public instance that does not obey any deletions because of these madlads. Seriously, where is pushshift for lemmy?

    Yeah this is a really good idea; I’ve been wanting to do it but haven’t had the time to configure everything. You’d need to hide which instance it actually is though, or other instances would just defederate from it. Maybe set up a website where you can plop in a post/comment URL and see the deleted contents.

    I’ll get around to it one of these days…




















OSZAR »