Job prestige and income go hand in hand. Women watch TV more than men because they are likely to work fewer hours outside the home than men. People who work earn more than people who do not work 3. Blacks are more likely to vote for the Democratic Party than whites. Universities which offer the PhD have larger endowments than universities that do not.
Small families are more likely to be happy than large families.
Fraternity men are more likely than men not in fraternities to rape. Fraternities raise more money for charity than honor societies. Men with brothers are happier than men without brothers.