@elam84 This is a topic I wondered about a lot when meeting other moms and seeing so many with 3-boy families. The odds are not exactly as one might expect, and even if the boy/girl split is 51/49, the odds do change slightly based on the sex of previous children.
This article has some interesting stats.
Similarly, a family is more likely to have a 3rd or 4th boy after two previous boys, rather than having a girl. Like 55/45 instead of 51/49 as the odds would have you expect.
This article has some interesting stats.
The odds of having a boy seem to increase after having girls, except after 2 girls, when a 3rd girl is more likely.
Odds of Boy with no previous children: 51%
Odds of Boy after 1 Girl: 54.5%
Odds of Boy after 2 Girls: 46%
Odds of Boy after 3 Girls: 52.7%
Similarly, a family is more likely to have a 3rd or 4th boy after two previous boys, rather than having a girl. Like 55/45 instead of 51/49 as the odds would have you expect.