3 A family has two daughters
Sadly, it ups your chances to 43%. And even just having one daughter makes you five percent more likely to split, according to Columbia University economist Kristin Mammen. Parents with two sons, in contrast, face a nearly 37% risk. ‘We think it happens because fathers get more invested in family life when they have boys,’ Stephanie Coontz, author of Marriage: A History and director of research for the Council on Contemporary Families, told The Daily Beast.