github twitter instagram linkedin email rss
How to Guess One's Blood Type
Nov 3, 2019
One minute read

We have that one friend who can guess your blood type based on your behavior. I’m curious if I can guess somebody’s blood type. After 1 minute of googling, I think there’s a good way to guess one’s blood type.

You can start by guessing O. Because about 44% of population are type O then you can have about 54% chance of being incorrect. But don’t worry if you’re wrong. You can use type A as your next guess because now your probability of being incorrect is 14%. It’s not bad, right? But, if you’re still wrong, guess B to have proability of being wrong down to 4%.

You’re unlucky if the person is type AB.

This is valid for US people because I use this data. According to this, different race or countries have different distribution. For example, about 45% caucasian people are type O while 51% for African-american and 57% for Hispanic are type O.


Back to posts


comments powered by Disqus