Put another way, 70% of self-made billionaires completed college. This strikes me as higher than the national average, so completing college increases the chances of you becoming a billionaire.
Also, with a sample size of only 292, I find it hard to believe you could precisely determine what made them a billionaire. In fact, for all they measured, you could probably find 100 people of each who shared all of the same characteristics and are not billionaires.
Put another way, 70% of self-made billionaires completed college. This strikes me as higher than the national average, so completing college increases the chances of you becoming a billionaire.
Also, with a sample size of only 292, I find it hard to believe you could precisely determine what made them a billionaire. In fact, for all they measured, you could probably find 100 people of each who shared all of the same characteristics and are not billionaires.