My understanding is women have a higher death rate than men when young due to when there are limited funds they get worst heath care in families. So brother an

My understanding is women have a higher death rate than men when young due to when there are limited funds they get worst heath care in families. So brother and sister goes to boy. Brother brother stays brother brother. Not sure on percents though. It might not override the issue of correlated data and selective breeding. (Edit - actually now I try think about it this is wrong since now there's also one less women in the world, the mens average also changes)