The question could be phrased better, but the gist is: (number of married with children) / (number of members) in the population of ``middle or upper-class back

The question could be phrased better, but the gist is: (number of married with children) / (number of members) in the population of ``middle or upper-class background, 40 years-old on average, high academic performance''. I.e., does being an entrepreneur correlate positively or negatively with having children, among the mentioned group.