East Asians have a much higher probability of having the Sallele of the serotonin transporter gene than people living in many other parts of the world. There is a positive correlation between the percentage of S allele carriers
and a culture's rating on a scale from individualistic to collectivistic. What does this correlation mean at the
population level? How do individuals with the Sallele vary from those with the L allele, individually and within
societal context?