this post was submitted on 29 Jul 2024
1212 points (97.5% liked)

Microblog Memes

5719 readers
4412 users here now

A place to share screenshots of Microblog posts, whether from Mastodon, tumblr, ~~Twitter~~ X, KBin, Threads or elsewhere.

Created as an evolution of White People Twitter and other tweet-capture subreddits.

Rules:

  1. Please put at least one word relevant to the post in the post title.
  2. Be nice.
  3. No advertising, brand promotion or guerilla marketing.
  4. Posters are encouraged to link to the toot or tweet etc in the description of posts.

Related communities:

founded 1 year ago
MODERATORS
 
you are viewing a single comment's thread
view the rest of the comments
[โ€“] [email protected] 7 points 3 months ago (2 children)

Correct me if I'm wrong but isn't the student t distribution a set of distributions that includes the normal distribution?

Because if so, it feels a little like saying "you can't even call something red unless you've confirmed that it's crimson"

[โ€“] Bender_on_Fire 11 points 3 months ago

The t-distribution approaches the normal distribution with increasing degrees of freedom. It is certainly more relevant in for example hypothesis testing, since t-Tests (variance is estimated from the data) is much more common than z-tests (variance is treated as fixed and coming from a normal distribution).

In all of statistics or probability theory, the normal theory is however way more influential.

Nonetheless, it's a cool bit of history where modern statistics got its roots. As a lover of both statistics and guinness, i approve!๐Ÿป

[โ€“] [email protected] 3 points 3 months ago

The t-student goes to the normal when your degrees of freedom get close to infinitum (in practice with 30 df they're practically the same).