Intuitively you should expect rich kids to have an advantage in every endeavor because they have more resources. Rich kids can afford private tutors (which prov

Intuitively you should expect rich kids to have an advantage in every endeavor because they have more resources. Rich kids can afford private tutors (which provides a 2 standard deviation improvement compared to 1 for Khan style learning), have more time and are less distracted by problems that can be solved with money. That's to say nothing of the behavioral differences that result from a privileged upbringing and which are arguably more important than extrinsic factors.