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I'm not 100% sure about this, but I have been doing a report on asymmetries betweent the right and left hands and the differences in these asymmetries between right- and left-handers, and from the information I have come across the 1 to 9 ratio seems to be pretty well accepted. (10% left-handed / 90% right-handed).

Please correct me if you have more specific or up to date info.

I believe ur right about that and of that 10%, 70% are males and 30% are females which means that 90% of the world is right-handed and 10% is left, 7% of the world is left-handed males and 3% is left-handed females.

I believe you may be wrong because if 10% of people are left handed then 90% of people are right handed then how many people are ambidextrious?

^The amount of ambidextrous people is assumed to be negligible in this case.

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โˆ™ 2011-04-11 22:00:39
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Q: What is the ratio of right handed to left handed people in the US?
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What is the world ratio of left handed people to right handed people?

About 10 % see http://www.scq.ubc.ca/the-fighting-hypothesis-stability-of-polymorphism-in-human-handedness/


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