What are the odds of twins being Boy/girl twins?

What are the odds of twins being Boy/girl twins?

by Jeff
(Lansing, Michigan, USA)

Say a woman knows she is pregnant with twins--period, but doesn't know the gender. What are the odds that the twins will be a boy/girl set?

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What are the odds of twins being Boy/girl twins?

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May 04, 2010
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Twins...
by: RC

I've heard that 25% fraternals are girls, 25% are boys and 50% fraternals are girl/boy twins.

I've also heard that 66% of identical twins are girls and 33% are boys!

Mar 30, 2010
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Boy/Girl twins combo
by: Anonymous

I read on a website that your highest chance in fraternal twins is boy/girl and that is 40% the next most likely is girl/girl then boy/boy. I will have to look it up again but I assume they got these statistics from all the twins born. I am hoping for one of each. We find out on the 19 of April.

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