this post was submitted on 23 Dec 2025
446 points (95.5% liked)

tumblr

6303 readers
349 users here now

Welcome to /c/tumblr, a place for all your tumblr screenshots and news.

Our Rules:

  1. Keep it civil. We're all people here. Be respectful to one another.

  2. No sexism, racism, homophobia, transphobia or any other flavor of bigotry. I should not need to explain this one.

  3. Must be tumblr related. This one is kind of a given.

  4. Try not to repost anything posted within the past month. Beyond that, go for it. Not everyone is on every site all the time.

  5. No unnecessary negativity. Just because you don't like a thing doesn't mean that you need to spend the entire comment section complaining about said thing. Just downvote and move on.

Sister Communities:

founded 3 years ago
MODERATORS
gedaliyah@lemmy.world
446
Who ever could it be? (piefedimages.s3.eu-central-003.backblazeb2.com)
submitted 6 months ago by RmDebArc_5@piefed.zip to c/tumblr@lemmy.world
32 comments fedilink hide all child comments
 
you are viewing a single comment's thread
view the rest of the comments
[–] carotte@lemmy.blahaj.zone 2 points 6 months ago (2 children)

are you sure it’s 26%? i’m arriving at around 57%, but maybe there’s a flaw in my reasoning

[–] tensorpudding@lemmy.world 6 points 6 months ago* (last edited 6 months ago) (1 children)

Its possible I made an error, I used 1 minus the cdf of the binomial distribution with n = 4 and p = 0.25 evaluated at 1, calculated from https://binomialdistributioncalculator.com/binomial-cdf-calculator/

[–] carotte@lemmy.blahaj.zone 5 points 6 months ago

huh. i did the same thing, but by hand…

oh wait no i see my mistake. you’re right, it’s about 26%. my bad 😅

[–] MissingInteger@lemmy.zip 4 points 6 months ago

@tensorpudding@lemmy.world is correct:

P(at least 2 gay) = 1 - P(0 gay) - P(exactly 1 gay)
= 1 - 0.75^4 - 4×0.25×0.75^3
= 1 - 0.31640625 - 0.421875
= 0.26171875
≈ 26%