How does Nature balance both genders so well? They are almost 50/50

Question

Basically the Title. How are our body’s so good at regulating how much males and females are born, if they aren’t aware of the Balance at all?

In: Biology

Answer 1

50/50
Flip a coin 4 times its much easier to get 4 heads, but flip it 7 billion and it will get closer to 50/50