Blood types are not evenly distributed throughout the human population. There are also variations in blood-type distribution within human subpopulations. The figures given here are for people of European descent:
Type Frequency
O+ 38%
A+ 34%
B+ 9%
O- 7%
A- 6%
AB+ 3%
B- 2%
AB- 1%
Therefore, O+ is the most common and AB- is the rarest.
2005-12-17 22:08:47 UTC
There are eight types of blood, broken down as follows:
blood type percent of
population blood type percent of
population
O Positive 38% O Negative 7%
A Positive 34% A Negative 6%
B Positive 9% B Negative 2%
AB Positive 3% AB Negative 1%
JuliaM
2005-12-22 03:41:51 UTC
O positive is the most common, AB negative is the rarest.
desabol
2005-12-17 22:08:20 UTC
O Positive 37%
O Negative 6%
A Positive 34%
A Negative 6%
B Positive 10%
B Negative 2%
AB Positve 4%
AB Negative 1%
J.R.
2005-12-17 22:11:10 UTC
It really depends on what racial or ethnic group you are talking about. In general
Blood type O is the most common world wide, AB is the rarest.
Below is a link to a chart for blood type distributions.
mathwiz
2005-12-17 22:07:52 UTC
most common is AB+ least common is B-
ⓘ
This content was originally posted on Y! Answers, a Q&A website that shut down in 2021.